BG3 is a rather different situation. Big team, big budget, incredibly strong hardware to work with, and they are not starting from scratch. Games have been made in 5E, and they also have the original games for inspiration. They made the choice to use the DOS engine in what seems to me like a fairly pure form, but that was not obligatory. They've made the choice to make the setting cartoonish, to have an intense focus on surface effects, and to make combat extremely long and drawn out whenever there's more than your party and a couple of hostile actors involved... That's all because Larian wants it that way, not something they had to do.
This pretty much sums it all. Larian had plenty of opportunities, including one year of amazing feedback that I have witnessed in this forum. What BG3 will become is entirely Larian's decision. They have all the power to create the best RPG ever made, but what we have so far is far from that. They are excited to bring BG3's name and D&D 5th edition, but they never talk about the originals. And that is what is missing, to understand what truly made the originals special.
On a side note, people tend to invoke WoTC approval to justify Larian's decisions. I have to remind you that WoTC doesn't give a flying F to what Larian is doing. Just see what new Dark Alliance became.
