I'm not totally surprised by the release as hometown hero Stala was on the downside of his career at 34. Did he still have enough to contribute as a Canadian backup at receiver? Who knows. The Cats are pretty flush with import receivers and with Andy Fantuz and Sam Giguerre as their non-import starters at receiver, that's enviable. They still need a valid Canadian backup though.
Incidentally I once met Stala when a friend was doing a photo shoot with him and some kids at Ivor Wynne during the off-season. Nice guy.