I forget the livestream, however the 'rulemaker' for WoTC made the point that Larian is, essentially, a dungeonmaster and if they want to change it, that's the dungeonmaster's perogative. Before that, they also made a point that's far more fundemental; BG3 is a computergame, not tabletop. That means many things that 'work' in tabletop 'don't work' in a computergame.
Sure, but it's equally within our rights as players to say that rule X - 5e RAW or Larian homebrewed - is dumb. Especially in this EA process of BG3 where Larian has specifically asked for feedback. Find Familiar (a level 1 spell) animals having better stats than Beast Master Companions (a level 3 class ability, roughly equivalent to a level 2 spell) devalues the Beast Master subclass, making it much less fun to play and doesn't make sense thematically.
Plus, all of the things discussed in this thread can easily work in a computer game.
- Beast Master Companions getting a proficiency bonus? Easy.
- Find Familiar animals not being allowed to take the attack action? Easy.
- Find Familiar animals channeling touch spells through them? A bit more difficult but still feasible to implement. Click spell -> click familiar -> familiar gains ability to cast that spell once.
What you're/Larian's referring to is more along the lines of spell durations, long rest restrictions, freedom to explore, and dialogue and social checks, not pure combat/creature mechanics.
