It's valid feedback. Especially in BG3 where ST/conc spells are much weaker than attack roll/auto damage spells.
I would argue this is EA bias though. This balance between spell-attack vs. ST will flip back to ST/conc spells being stronger once higher spells kick in,
even with Larian's changes. There are roughly (based on dnd beyond) 24 spell-attack spells in the Player's Handbook. Only a small amount (5 listed, but they missed Bigby's Hand) are 3rd level or above:
- Vampiric Touch
- Faithful Hound (summon - but uses your spell attack for melee)
- Contagon (touch, but requires save too)
- Dispel Good/Evil (touch for dismissal feature, but requires save)
- Mordakainen's Sword (summon - but uses your spell attack for melee)
- Bigby's Hand (summon - but uses your spell attack for 1 of its functions)
Once level 5 kicks in and you get access to Slow, Fireball, Hypnotic Pattern, ST spells that are completely game changers.