Like I said, an indication that they may be leaning into alternate realities as the basis for their tv series. Otherwise it would be odd to launch a brand new show in it's own separate continuity yet on the basis of a spin-off character from an already in-continuity show.
It's not that odd, because it's how fiction often works. It wouldn't be the first time in TV history that a spinoff built around a certain character has been in a different continuity from the work that introduced that character. For instance,
The Andy Griffith Show was based on a character from an episode of
The Danny Thomas Show, but the Andy Taylor character and elements of Mayberry were retooled for the series, so it was out of continuity with the original episode. And Robin Williams's Mork from Ork character was introduced in a
Happy Days episode that turned out to be just a dream, but then they spun him off as a real character (and reshot the ending of that
Happy Days episode to fit).
In fact, we've already seen this done once in the Marvel Cinematic Universe. The
Agent Carter TV series was inspired by the short film of the same name, but it completely contradicted and decanonized that short film, replacing it in the continuity.
I still don't know how people can say this after Endgame.
If you're referring to the use of Edwin Jarvis, that was a character created for television by the film's own screenwriters, so I don't think it proves anything about how different TV characters might be used. (And as I just mentioned, those same screenwriters already overwrote their own first-draft version of
Agent Carter.) The fact is that there's long been a schism between the Marvel Studios movie and TV divisions, and it's the movie division making the Disney+ shows.
And it's also a fact that, as the fate of the
Agent Carter short proves, continuity is NOT the singular overriding goal of storytelling that some fans imagine it to be, but merely a means to an end, a secondary consideration that can be suspended if it gets in the way of telling the stories you want to tell. The
Agent Carter TV series could not have existed if the short-film version had stayed in continuity, so it had to go. By the same token, if the plans they've developed for the
Ghost Rider series require them to give the character a brand-new origin story and overwrite the AoS version, then that's what they'll do, because continuity exists to serve story, not the other way around.
