As an example, in a majority of talks there was no time for questions and very little chatter between and around talks. It is like walking in big city, everyone is busy running around.
And questions and comments after talks was what was bringing the most value to the event. Compared to just watch a recording of a talk.
Agreed, this year was a bit light on questions.
OTOH, 80% of the reason I go to talks is to see if the person has interesting things to say and grab them after the talk for a chat. I.e. it sucks for the remote experience, but I think for on-site it's fine to just talk more.
Gets harder if you consider the talks the main attraction, but I really see them more as hooks to talk to people about interesting topics.