I really don’t give a shit about Starkiller Base, it’s dumb but it’s also such a relatively small part of the movie. There are other little things that bother me but they don’t amount to much with the overall story as satisfying as it is.
I think it’s a problem that the largest superweapon in the Star Wars universe to date can be accurately described as ‘a relatively small part of the movie’.
No you’re right that’s exactly the reason why it’s a problem (the scene where they formulate the plan is absurd) but it also makes it really easy to roll with it (again that scene, you kinda just have to laugh).