If you wonder why an argument might be controversial, it can helpful to imagine how it would sound like in mirror world:
Assume for a moment that working remotly and a flexible workday would have been always the default. And now some companies decide: Hey let's contractually enforce a 9 hour continuous workday where all our workers will be locked in a big ugly building that we build just for that purpose (Btw. at least one of the 9 hours will be unpaid because this is where people will have lunch. Also we won't reimburse anyone for their traveling expenses or their time spent during the commute).
Now read again the arguments you wrote to support this new idea.
Assume for a moment that working remotly and a flexible workday would have been always the default. And now some companies decide: Hey let's contractually enforce a 9 hour continuous workday where all our workers will be locked in a big ugly building that we build just for that purpose (Btw. at least one of the 9 hours will be unpaid because this is where people will have lunch. Also we won't reimburse anyone for their traveling expenses or their time spent during the commute).
Now read again the arguments you wrote to support this new idea.