The melee option of administrating a potion to an ally sounds good.
Summons drinking potions can stay.
I don't really care...but they could turn off moving items between character if outside of melee range when in combat. Out of combat- magic pockets etc can stay.
Some summons administrating potions- sounds good.
Actually if a class has a ranged help action, then maybe ranged administer potions is ok.
If larian removes healing cloud from potion, then have a check, if has potion in inventory= unlocks melee range spell to use potion on an ally. Or code a melee range healing spell...even easier to code.