I think 5e action economy fad is not a very good system for games.
This was done to make TT players life easier, streamline, simplify and limit rolls, as well as try to balance things a bit better. But for video games, where computer handles the rolling without driving players crazy - having very limited amount of things you can do in your turn is a downgrade for sure from previous versions.
I am glad Larian understands it and tries to spice up amount of things you can do per turn, they should do this, especially given how quite a few encounters with 20+ actors work - I absolutely think that these are the cases where for sure out characters should be able to do more than plain 5e allows after waiting these 2 minutes or so for the single turn.
---
And yes, missing is not fun.
It's ok to have Larian adjust this a bit to allow more actual effect for your actions. Missing was fine in earlier D&D RTwP games, where the ruleset allowed more actions per turn AND your whole round was 6 seconds flat. It's not fine when rounds take a good minute+ to complete and your actions are much more limited on top of it.
I think it's fine to adjust the game so that you are not expected to miss 50% of the time normally.
Besides, what we have now is Normal mode - it's a mode most of the players are expected to gun for, even those who have no idea about D&D. There is no need to be anal with this mode. I'm sure on tactician things will be quite different with higher ACs and so on.