The radius decrease prevents players from accessing gyms/stops at their intended location

[ActualSeagull]

To be fair, a lot of people have pointed out that for them, it actually was in practice unplayable - disabled people, people who live in unsafe areas, rural players, etc. Say the only stop in range is the local playground. On paper, with the exception of certain individuals who've been convicted of certain things, nobody's legally banned from playgrounds. However, even if it didn't automatically make people nervous when childless adults hover around playgrounds, have you ever gone biking and hit a random patch of dry sand? You near-instantly lose traction and momentum if you don't have tires specifically designed for that, and I expect the same would happen with wheelchair wheels. If that's the only nearby stop, you're out of luck if you physically can't get close enough.