Here's an example:
https://365.strat-o-matic.com/league/stats/players/pitching/475113/rp/era/1If the link works, then it'll show a current league where if you click on RP for pitchers, it gives you a short list of pitchers who qualify as RP for the RP stats. But it's almost all starters (with no RP ratings) who came in once or twice in emergency relief roles, but have racked up lots of innings as starters.
Should be a simple coding fix, like all of our suggestions here.