Yes he is legit legit. Other media chime in and will say the same thing. I started following him (and AmUS) when he broke the Vettel out of Ferrari news out of nowhere back in 2020 the day before it happened.
Horner's comments today for Sky where he said they need both RBs on top, Marko saying he wants another young driver in VCARB.
This is what Horner said this morning: "We thought the contract would help [Checo]. It's something Checo is working very hard on, and he knows. Look, this is a sport where there is no hiding. Particularly with Max Verstappen as your teammate, he knows he's being measured against the very best.
"We need him up there, supporting Max. There's two McLaren's, two Ferrari's, two Mercedes' and we desperately need two Red Bull's."