I would argue that the climax of TROS is carbon copy of ROTJ with a different paint job.
I mean, first of all that’s basically the only similarity, so I don’t know how you can reasonably say the whole thing is a remake, you know that’s not true. Second, yeah it’s pretty similar, but “carbon copy”? Come on. There are some significant variations.
Regardless, it’s a lazy critique. Just because it’s similar doesn’t make it bad. It all comes down to execution.