I still keep seeing these kind of posts.
The whole reason why shootouts replaced ties wasn't because games were ending in ties but how teams played in OT: scared. Teams did not want the other team to get another point so they played blase. Only if the team had a PP or their backs were up against a wall with regards to the standings did teams want to attempt to play offensive hockey.
I have no problems with another 5 minute OT. As a matter of fact, just make the OT 10 minutes. Get rid of these "smart penalties:" a team commits a penalty with only 3 seconds left in OT, have the ensuing PP be the remainder of the OT. Actually, they should also do the same if a team commits a penalty with only a few seconds left in the 3rd.