Earlier quoted context omitted.
> they do the push-up/plank thing if you want to speak I don't know what that specific practice is, and I think I really really don't want to know.
You have to plank while speaking, in order to motivate people to speak succinctly. Obviously disadvantages people who aren’t physically fit as they literally don’t get to contribute as much!
If I am quiet in a meeting when I have a contribution to make--and make no mistake, I'm not speaking up regardless of my fitness level--my employer suffers, not me. He suffers again when his messed up culture inevitably causes me to find another employer.