I'm 100% ok with shitcanning review completely, the number of times a guy being offside directly leads to a goal is insignificant. To me it's goofy that it can be reviewed but other things can't. B's turn the puck over in the attacking zone, Marchand gets hooked as he turns to try to get on the back-check, no call, goal gets scored, oh well too bad, guess we missed it. What makes offside special? "It's not a judgmement call like hooking" bull shit, it took 3 minutes to figure it out last night, so obviously the official is making some sort of subjective judgment.
If they insist on keeping reviews (and they will)
1: Limit the time for the official to review to 30 seconds. If you can't make a definitive call after 2-3 looks, it's too close to overturn
2: There needs to be some limit to how long the puck can be in the zone before the offside becomes irrelevant. The goal that got called back against Colorado was 50 seconds after the zone entry. It asinine to say the guy being 1/2" ahead of the puck had any influence on that goal being scored. The other part of this is the one sided nature of it. If the B's enter the zone offside, play goes on, B's turn the puck over, other team goes down and scores, why can't the B's challenge that it should have been whistled dead on their offside?
3: Defending team touching the puck negates the offside.