Well, it was him. The director has also confirmed this fact.
Marvel has very good tactics such as this rolled up its sleeve. As soon as any of the episode is aired, I think the officials at Marvel have given instructions to the actors, writers and directors to get vocal about those episodes.
So, these people give interviews and get vocal about everything they’ve done on social media. This acts more of an advertisement for Marvel projects.
They’ve been doing so for the movies but now as they’ve expanded their universe right onto our phones and desktops via DISNEY+, these tactics have come in handy for Marvel. The internet goes crazy for all the stuff that Marvel does, pretty much because Marvel is way ahead of its game.