I don't think of it as a benefit... It kind of sounds like WFH is going to be mandatory from now on?

I can't find anything about mandatory no-office-work in that tweet thread anywhere. I see that the offices are reopening in a few months, with reduced capacity and an expectation that most employees will want to work from home. I don't see anything stating that you will not be allowed back in the office. Maybe I misunderstand. I don't know.