Actual productivity is not something they want to measure here, what they want is control.
This doesn't seem to be a logical conclusion. When you hire someone, do you care more about what they are delivering for you or do you just get some weird kicks?
Similarly if you actually cared about productivity you would never consider any kind of open or semi-open plan office, yet these are exactly the companies that do just that.
They think, “oh if you have 10 mins for doing the laundry during a work day, if you come into the office you won’t be doing that in office and perhaps use that 10 mins everyday to produce some additional non-zero value to the company”.
In their minds those 10-15 mins from everyone add up. I am not agreeing but that is what it seems to me.