It is fair that IPA hop aromas do diminish over time, it really depends on the beer how that affects its quality. But if you don’t expose them to light they definitely don’t get skunky, at any temperature over many years.

Which was of course the whole point of India Pale Ales. Chuck a load of hops in the beer, preserve it on a boat ride to India. Probably the hops aroma did diminish, but the beer didn’t go off.

And of course those beers were already way less hoppy. They weren’t for beer snobs, they were for colonizing.

The entire style was an attempt to make beer that would not go bad while on long unrefrigerated journeys to India from England, using extra amounts of the alpha acids in hops as a preservative.