Dear Arso,
I know a first hand account of a RY of a non chassidshe yeshiva who spoke with him about matters on a different continent.
What do you mean that he wasn’t spending time on communal needs? He built the whole Chabad network across continents. He was involved in many non Chabad communal needs.
I don’t know what you are like, but I made an assumption about a different poster. This is how the Rebbe reacted when he was challenged by people who wouldn’t learn.
If all you know about him is the sichos, then what is the issue? That the sichos don’t support what Chabad says today?!? They 2023 Chabadsker teenager is definitely more in line with the sichos than anything else!