None of those impeded your normal gameplay and they were fundamentally optional.
It's been stated several times that it will be optional. If you don't want to have naval combat - you don't have to. You can flee, fly false colors, etc. Some ships - like pirates and rival factions -
should attack you, it makes the world more alive, and gives consequences to your actions. So why is this a problem?
They also weren't promoted to exhaustion to appeal to normies.
It's about the only element (apart from the faction C&C, but that can hardly be shown without spoilers) that's completely different than what we can find in the IE games.
The first game was promoted almost exclusively as a spiritual sequel - old, but also new. For this one, it seems they are going with the "evolution" of IE-likes angle. Which makes sense, marketing-wise.
They don't want it to be "more of the same sequel" (your words), yet they made it a direct sequel, making up countless contrivances to have the same protagonist from the first one.
Which
countless contrivances? A god from the first game, who was heavily implied not be dead, came back, wrecked shit, and now you have to go after him. It sounds like a better plot hook than Thaos.
Going by that logic, would you also say that BG2 starts with
countless contrivances: "Some nameless Mage you never before heard of captures you and your whole party off-camera, and you
have to chase after him, even if you don't give a shit about him or Imoen, and would rather prance about Athkatla."