Templeton endured an unsuccessful afternoon as Rangers dropped points at home in the league for just the second time this season, receiving a yellow card for simulation before somehow missing an open goal.
"It was certainly a chance. I was extremely surprised and obviously disappointed, but listen, it happens. I've been known to miss one or two myself, maybe not just like that, but I certainly missed one or two myself," McCoist is quoted as saying by PA.
"I'm in no way, shape or form singling Temps out for us not being good enough to win the game, the biggest disappointment was that after scoring three goals, we came away with one point and lost three goals."
Despite the draw, Rangers remain 21 points clear of second-placed Dunfermline Athletic at the top of the Scottish League One table.