Good directors also make duds. Hell, there are directors that keep falling upwards that all they do is make duds. Russo Brothers and Rian Johnson are proved talented filmmakers and the trashing of them usually feels like over petty shit like they directing Marvel films and getting caught between fandom wars. They are great, Rian Johnson is great, there is even room for trash filmmakers like Zack Snyder at Netflix. I'm sure that Russo Brothers and Rian Johnson are bound to make excellent films in their future, they have proved themselves time and time again. Claiming they aren't talented is simply inaccurate.
Never said Rian Johnson is not great.
But the Russo Brothers? Nah, making Endgame is not enough to make them some of the best filmmakers when they releases The Gray Man, Extraction, Cherry afterwards. You can't put The Russo Brothers and Rian Johnson when the former made Cherry and The Gray Man and the latter did Knives Out, which is by far one of the best movies in recent years.
Extraction 2 is going to be another trash in the making. If you are talented you ain't going to release 3 duds in a row in a short period of time.