People post nonsense on reddit claiming to be insiders all the time. This post is so transparently trying to push some narrative that Lucasfilm/Disney ruined some mythical four-hour ‘JJ cut’, or that “Abrams shot two movies”, which is entirely unsubstantiated. The reshoots and cuts in TROS aren’t subtle - Mustafar is obviously cut down, Luke’s wig is obviously a reshoot etc. Similarly for Josstice League vs. the Snyder Cut: you can feel it. If Coruscant, Mortis, clones mixed with Phasma’s DNA (???) etc. had been cut, there’d be some trace in the final product, and there just isn’t. Ditto for the claim that Crait was originally at the start of TLJ - that leaves the movie without a functional third act; where would Luke project to? Would he just die on the island? It’s silly fanfiction at best, some weird attempt to slander Alan Horn and venerate JJ Abrams at worst. Plus “Heirs to the Force” is a fan-speculation tier title (to be fair, Duel of the Fates is too, and that’s real…).
Edit: Also, I can’t possibly trust anyone who sincerely believes DOTF ‘got Star Wars’ the best. That script ends with Yoda and Luke telling Rey how fantastic it is that she’s decided to embrace the Dark Side and that “narrow was their point of view”, entirely missing what Lucas was getting at the whole time. Yes, integrating your shadow is part of Star Wars; no, this doesn’t mean just occasionally choking people, as a treat. The dark side is addictive. Plus, “Rey Solana”? Why give Rey a totally arbitrary last name? If she had to get one, let’s be honest, it was always going to be “Skywalker” or at an absolute stretch “Solo”. Sorry, I’m ranting because I’m sick of DOTF being put on some pedestal just because TROS was also bad.