No. They've publicly said they came up with the stupid joke first, then applied it to Kanye later because he seemed like a guy that wouldn't get the joke (and were later shown to be right).
I'd be more concerned about your computer making the room even hotter personally. To put it in AC terms, 500W of component power draw is 1700 BTU. May want to err on the side of more power efficient components.
But yeah, should run fine as long as you have good air cooling even if it's not ideal. Data centers are often run hot these days.
90F should be fine. A lowish CPU temp is like 40C (104F) and that's typically the hottest component. CPUs are often made to go up to around 90C under load.
Lemme give a preview of the result:
Israeli estimate: 3000
Hamas estimate: 300000