I disagree. You already have shared magic pocket inventory. A character can heal themselves with a bonus action. You use potions for healing and you completely negate the point of a healer.
And if you allow one potion to be thrown, you allow all. Thus, you negate all need for spells.
Potions were never meant to be poured on, as if by merely touching them they affect you, but that's what we have in BG3. If a poison touches your boots, you're poisoned. Likewise, if a healing potion hits your clothes, you're healed.
It breaks everything and what you get now is that classes are meaningless. Items are EVERYTHING.
