The moment you see the £180 average spend per match on other bits it becomes clear that the figures in this are bullshit.
This is either one of those posts with deliberate errors in to drive engagement by people replying to correct them, or this is some random bloke who is pretending to be knowledgeable and failing.
I agree with the argument that lower ticket prices can drive up attendance, and with the right balance, would actually lead to more revenue. But these figures look well suss and made up. Too extreme.
Are we supposed to believe that of Bayern changed $350 instead, they be more than half empty? Yes other spends might go down to make up some of the difference, but this argument only works if you believe the German mega club that wins every week could only draw 40-45k fans at even moderately higher prices.