I really like the Coruscant opening thematically, and the work being done on it is splendid, but I worry that it causes more questions than its worth. Chief among those being if it’s been there since the Prequel era or if Palpatine stuck it there when he turned it into the imperial capitol. If it’s the former, how did they get it and why didn’t they ever do anything about Exegol, and how has it remained untouched? If the latter, again how did nobody ever find it?
Further, how did Luke not find it on his travels with Lando? Seems like the Jedi Temple wouldn’t have been a particularly hard place to search, especially if Kylo finds it in a jiffy.