I might have driven the topic a bit too much towards Bless in particular. I think I would not mind too much for just Bless and Bane to stay the way they are now. I just highlighted the spells because everyone instantly knows what I am talking about mechanically.
My main concern lies with higher level spells. They are a much more limited resource even at high levels and should feel meaningful in the situation they are meant for. For Example when I upcast Hold Monster, I do it because I think there is more than one dangerous enemy, so I want to reduce the threat. I will never use a 6th level spell slot for that if it means taking out a strong fighter and their little goblin friend. Or when I spend several sorcery points and the spell slot to twin Greater Invisibility, I might want it to hit the rogue standing behind the enemy and the sorcerer themselves far in the back, not the paladin or barbarian meant to protect the party.
I'll echo OP that we move on from talking about Bless specifically. The argument has been going in circles for a page now and doesn't look like it will progress any.
IN GENERAL, I agree that Larian should implement spells' targeting correctly: if you're supposed to be able to target specific creatures with a spell, that's how it should work in BG3. If only for consistency's sake (e.g, Scorching Ray vs Twinned Acid Arrow). I've seen twinning, upcasting, and specific spells mentioned as potentially problematic.
Btw, is target selection for upcast spells confirmed to operate via proximity? I've only seen it *theorized* ITT that upcasting works this way in BG3...
