Have you considered that people at work may not want to stay rigidly on target 100% of the time, and may find your hidebound need to do so bothering as well?
Your comment could be interpreted to be condescending in tone, which I find quite ironic; the result of your rhetoric is you seem more "annoyed" than OP.
Especially in a large remote meeting, mindless dialogue is incredibly annoying, and often very costly.
I don't log in to work for small talk or personal enrichment. I'm there to accomplish work.
Meandering, unconstrained conversation and boring personal annecdotes belong at Sunday brunch, or on hackernews.
Have you considered that people at work may not want to stay rigidly on target 100% of the time, and may find your hidebound need to do so bothering as well?