Imma keep it 100 with you. I do think this is all Ryan Coogler and Nate Moore's doing.
However, I think Feige was SURE MOM and L&T would we world wide hits so its ok if WF is just a tribute movie. MCU too big to fail. However, its really up in the air if people want to watch a sad trauma filled movie. No matter how good the direction is. Thats a tough sell for repeat viewings.
MCU has lost its grip on the fan community. So they are on WF success.
Feige is sweating bullets. Just like he did at the premiere. He needs this film to work or he needs (or knew judging by his change in stance) T'Challa back.