It isn't exactly "unheard of" for a spring to fail. I like to keep spares myself.Not going to replace it right away. I usually have a few spare parts on hand for some pistols and recoil springs is one of them. Especially if I might use that gun on a hunting trip. Most good gun smith's probably have common recoil springs like for a 1911 on hand. The P220 in 10MM not so much.
But none of us have found the recoil springs for the 10mm P220.I keep a complete spring kit spare for all my guns. You never know what could fail.