Mixing the legendary streaks of the '93 Penguins and the '82 Islanders with weak-sauce streaks from the "no-ties" era of today is a bit disingenuous. Before 2006, the majority of games that went in OT ended up in ties, with no winners. That significantly affects the odds of going on a long streak.
For instance, the Oilers have the second biggest winning streak with 16 wins but in reality, it's a 3-game winning streak. The 4th game would have been a tie under the old rules and was won in a shootout.
That 17 streak by the Penguins in 93 is insane. It just highlights how much that team was stacked. It looks like someone's messing around on the playstation. AND it was coached by the best of all times as well, Scotty Bowman.