The "source" of the article is "the perception of sources throughout the industry". Followed up by the phrase "mostly if not completely".
Not exactly definitive news yet. That said, where there's no smoke, there's no fire. And Marvel Television hasn't been producing much smoke lately. Of course, just like that Sony/Marvel deal, for weeks on end there could be no deal, and then all of a sudden there's a deal. So Marvel Television could go months without any news about new projects, but then all of a sudden there will be a new project.
That said, this wouldn't be the most shocking news ever, if true, but like mentioned by the above poster, I hope it's not true. If nothing else, the shows from Feige all sound like short 6 or 8 episode only shows, most of which probably aren't even designed to go past a first season. At least Marvel Television will give us 10-, 13-, 16-, and even good old fashioned 20+ episode seasons. And multiple seasons at that. And being a typical greedy consumer, I say the more the merrier. Of course, I want both, who could say no to those amazing sounding big-budget Disney+ shows? But Marvel Television has given me a lot that I've liked too, and in much more regular doses. So I hope it doesn't all go away.
And while I'm being greedy, I also want a weekly show (from either Feige or Loeb) set at the Xavier School starring a bunch of students who sometimes get taken on field trips by their teachers.
edit: that said, when was the last new show launched by Marvel Television? I guess it was Cloak and Dagger, which has already finished season 2. Other than Helstrom, they don't have much cooking. Hey, Helstrom was supposed to be part of some sort of Adventure Into Fear branded set of series, right? Whatever that was going to be, I wonder if it's as gone as the Ghost Rider series.