The NHLPA has a much better chance winning in court on the decertification issue than the NFLPA, based on the courts the NHLPA will most likely be litigating in, Southern District of New York and Second Circuit Court of Appeals, which tends to be more labor friendly than the Eighth Circuit, which ruled in the NFL's favor on decertification.
I think as a tactic, decertification makes no sense. The threat is to basically by law take things back to pre 2005, i.e.no salary cap. More than half the league cannot operate without one. The NHLPA, before decertifying, ought to look at what happened to the bakery union workers who no longer work for Hostess, because there is no more Hostess.
I'm sorry but this just makes absolutely no sense on any basis. You can't be more wrong about this. It's not to take it to pre 2005. It's to take it to pre anything in sports ever. Free agency at any age. No draft. No salary restrictions besides internal ones. They're not bakery workers - they are highly skilled laborers. If that means forming 2 hockey leagues in North America, so be it - the players would still do way better.
NHL teams don't have unlimited cash, and in top markets, revenue streams are largely tapped out - revenues are growing, no doubt, but not at the rate that they would have to sustain the league you envision. And again, if there'd be 2 leagues, that could work just fine. Either way, it's a nightmare scenario for franchise owners, who are fighting over whether they make $6M or $5M per year under the CBA the players submitted.