First of all I have no idea about D&D at all, I like rpgs games like DAO, Fallout 1 and 2, and DOS2 and those kind of games.
I really dislike the rest/short rest/long rest system. It's just annoying and kills the pacing of the game to just go looting everything to get the 40 rations required, go back to the camp to recharge abilities and then jump back into the map or dungeon again... I mean I get the RP point but this is a game, this is just taking more time to do things... For example the goblin camp, I like the idea of going the heroe's path and kill every little nasty goblin but with this rest system I had to go rest to the camp at least 4 times for each heavy encounter, I just wanted to go all in rampage at once but I had no more skills or spells.
I really like the no cooldown system or at least the DOS2 system that has cooldowns marked by turns and they recharge faster when out of combat.
I’d agree the approach wouldn’t suit every game, but want BG3 to be as authentic D&D as possible and don’t think there’s any way to accomplish this without the spell/ability cost and short rest/long rest system.
And I do think there’s interest and challenge to be found in it that wouldn’t otherwise be available. I agree long resting in the middle of the goblin camp kills pace, but believe Larian have balanced this mission to make it challenging but possible to achieve without long resting. If I’m having to rest within a mission, then I take it as an indication that I’m failing to ration my spells and abilities tightly enough, am not winning fights decisively enough, or am just doing too much fighting and not enough sneaking/persuading/etc. I try to complete areas like the goblin camp without long resting. Personally, I would be disappointed if the game were rebalanced to make it possible to sweep through the camp heroically killing everything other than with extreme difficulty, given that’s not what we’re prompted to do and would make it far too easy to accomplish the core task of killing the leaders.
In the full game there will hopefully be some easier challenge settings that will allow more killing with less resting, but in the meantime it does seem fair that those who want to “rampage” and go all in with their spells and skills will probably have to take advantage of the fact that the game does allow long rest mid-mission, to preserve balance for players who prefer to take the more measured sort of approach that the game is more tailored for.