for something that only comes around every 4 years. Sprain your ankle the week of, and there goes 4 years of training. Granted, some sports offer other fame and glory in between, or bigger championships (e.g. NBA Finals), but Olympics is the apex for most of them.
People's athletic primes come and go in four years. If 2020 games were entirely canceled, an 8-yr gap would be brutal . . .