Preisst*
Registered User
Tennis deals with "deuce" scenarios like this, so no reason hockey couldn't. Maybe successfully tying it during the extension gets you to a shootout, instead of constantly going back and forth. Otherwise, time expires, game over. I dunno, I can imagine plenty of ways that it "could" be done if gamesmanship of taking penalties late in games was really deemed to be an issue worth addressing.
If Team A takes a penalty with 1 minute left in the game and then they are playing the extra minute of the penalty after the regulation 60 minute game is over, THEN Team A (or B) takes a penalty when there are only 5 seconds left to play in the "penalty time" now the teams have to play another 1:55 to play out the 2nd penalty. This penalty taking could go on forever, and the game might never end.