She did promise us those updated artbooks eight or so years ago and failed to deliver. And I know what you're going to say. How do we know it's Naoko's fault for that and not Kodansha's? It's true we don't know what happened so until we do both of them share responsibility for that fiasco, in my book.
Actually, I 100% agree that they share responsibility for that. It's not like Naoko's done no work towards the art book re-release (she's done a handful of new illustrations at the very least), but it's obviously not something she has any passion for, because if this were really something she wanted to see happen, it would have happened by now. At the same time, it's also obviously not something Kodansha really cares about either. If they did, they wouldn't have started advertising it as coming soon in magazines and then never following through. And it's not like it's something that requires anything extensive from Naoko apart from new cover art (which they obviously already have) and maybe a signature on a contract (which they also probably have) since the first art book was advertised as an omnibus re-release of the first three art books. Unless some of that art work has been lost the way they lost a chunk of her manuscript for PQ Angels, the only explanation I can think of for the lack of this project's materialization is that Kodansha and Naoko aren't really interested in it. Maybe they did some market research and found there wasn't a lot of interest among Japanese fans? Who knows. But I'm sure Osabu will keep telling us it's coming until the day he dies.
Anyway.
Don't forget the recent mini-manga editions and the novelizations that feature manga panels. She has been reheating the same stale food for decades and milking that cash cow without producing any new content. Of course, it's her prerogative to financially exploit her work to the fullest extend but that doesn't make her above reproach. She's not Putin.
Fans should be allowed to criticize her decisions without being attacked or shamed for doing so. We had the same issue when we learned she demanded high licensing fees in underdeveloped markets. Again, she's entitled to do that and we're entitled to call her out on that. Some fans take it too personally when people criticize their "Queen".
I'm no stranger to criticizing Naoko. I have enormous love and respect for her and the manga, but I was the one who started the Manga Art Errors thread wherein I've pointed out a number of inconsistencies, weird art choices, and other things. I've criticized her numerous times for repeatedly recycling character designs, her repeated use of non-consensual kisses (generally framed as being romantic), plot holes and inconsistencies in the manga, weak characterization of anyone not named Usagi or Mamoru, how sloppy and self-derivative the Stars arc was, her problematic depiction of LGBT characters throughout her work, etc. I'm the first to say she's not beyond criticism. I have no problem with people criticizing her; I have a problem with the way people criticize her.
For example: Fans calling her lazy for not doing something they want her to do or something they say they would do if they were in her shoes is absurd. The relentless Ferrari jokes are tiresome. And you can criticize her for milking that Sailor Moon cash cow, I guess, but...it's not like she's the only author to ever do that? It's pretty standard for books (manga and non-manga alike) to get multiple re-issues over the years without any differences apart from cover art and maybe some internal illustrations (if any). There have been numerous editions of the Harry Potter books over the years; is Naoko milking her cash cow any more than Jo is? At least Naoko isn't marring her series' legacy by tweeting out that during the Silver Millennium, Queen Serenity used the Silver Crystal to keep the palace chamber pots sparkling clean.
In short: There are valid things to criticize Naoko about, and there are things that are just silly and come off as entitled whining. She isn't perfect, but she also doesn't owe anyone anything. She can do what she wants with her series, and you can do what you want with your money/support.