There is also the option of looking at the rules and abilities in Dungeons and Dragons and you will find at level 5 and up things change. I don't think it's good to look at BG3's current combat meta (with a level cap at 4, and some tweaks by Larian) and think that is Dungeons and Dragons.
Granted, I do not have significant experience with DnD type of games ( aside of Pillars of Eternity Dreadfire, which I played in turn based mode ) , so I sure hope higher level will be better regarding misses.
Here's why the difficulty would be changed:
It sounds like you want an easier difficulty because you keep adjusting your proposal as you go.
I did not change anything from my original post, only explained in more details. Please point out what you think I changed from OP or where I countered my OP.
As I said before, I do not want easier difficulty, as it is easy even now. As an example, I was able to kill The Hag (Auntie) in her hut in first turn, before she had chance to escape thru fake fireplace to her cellar. Furthermore, I would be quite willing to accept "low misses" solution that would raise difficulty - but I know that some other gamers might not, and that's why my suggestion leaves exactly same difficulty.
Also, because you want to ignore spells and mechanics in the game that already help you hit more. There are a lot of spells and mechanics in Baldur's Gate 3 (some from Dungeons and Dragons, and some Larian added themselves). That require you to do more than just attack, attack, attack. You don't want to use those and would rather use homogenized damage to whittle at your opponents.
This is assumption on your part. I do use available mechanics to increase my hit chance, and I *still* have way more misses than I like.
DnD is built around the Dungeon Master and the players being subject to the same rules. By saying that you want only the opponent be subject to true random, you're asking for this balance to be disrupted. That's also why it sounds like you're asking for an easier difficulty setting. One where you don't have to worry about doing anything but chip, chip away.
This is conclusion based on wrong assumption. You assume that my suggestion would lower difficulty, and assume that it would "disrupt the balance". Then you use your assumption to prove that same assumption. Kinda circular logic. If you accept than my suggestion does NOT give you advantage, then you must accept that it does not give disadvantage to your opponents.
Also, it is another assumption that I just want to "chip, chip away", and in fact that is one of my more serious objection to DnD combat. It is even mentioned in my OP. I find combat in games like DoS far more interesting exactly because I can do far more meaningful things than just swing the sword.
All that being said, homogenized damage still seems tepid (as discussed before). I don't see randomness as a combat issue at all
Obviously, this is subjective. But what is not subjective is that there are many more great RPG games that have LOW randomness range than games that have this high randomness range. Starting with Larian's own DoS games. And there is nothing "tepid" in those games - fight in DoS is by FAR more interesting, engaging and open to tactical decision and synergies than DnD fight ... not only BG3 DnD fight, but Dreadfire DnD fight too. Granted, I did not play "true" DnD, but even if it i smore interesting than this it would not make DoS combat "tepid" by any mean.
If Larian goes the route of a homogenized damage setting, they're developing the game and have a right to make that choice.
That "Larian goes the route of a homogenized damage setting" misses main point explicitly stated in my OP - this option I suggest would be exactly that : an option, that is disabled by default. So saying that if they implement this Larian would be "going the route" is missing the fact that game would remain unchanged to everyone who do not want to use this option.
In fact, most "going the route" requests on this forum come from DnD crowd, where requests are to change BG3 in such a way that it would be changed to all players - mostly closer to "true" DnD. I'm not going into debate if those requests are good or bad ( and believe that at least some are good ), just pointing that my suggestion is not one of those - it would NOT change anything to those who do not want to use it. And it should not require large resources to do it.