Not all slots are connected to one big pot, but a few (the progessives) can be. In which case yes, the takeout requirement is applied to the set of the machines rather than a single machine. So if you had four machines that are fed 250K each and one machine hits for 750K and no other machine hits then that would comply with a 75% takeout. This is majorly oversimplified, but I think you should get the idea.
Worse yet with progressives is they may even span multiple casinos. So that grand prize someone is grinding for and wasting their money on... it may never hit at that casino.
Worse yet with progressives is they may even span multiple casinos. So that grand prize someone is grinding for and wasting their money on... it may never hit at that casino.