Temple of Elemental Evil was a complete commercial flop (like most of the games made by Troika), while HoTU was the expansion of NWN, a commercial success.
Personally I think ToEE is leagues better than ANYTHING with the NWN name attached on it when it comes to gameplay and combat.
Party control in Baldur's Gate 3 is a complete mess that begs to be addressed. SAY NO TO THE TOILET CHAIN