Haven't read the whole case, but from what I can see the kind of stuff examined means that the judgment should be as significant to the trades as the Uber case, although as an Employment Appeal Tribunal it's a bit further down the judicial pecking order than the Supreme Court.
As significant, of course, if it was more widely applied, but like the Uber judgment, its wider application depends on local individuals and groups taking action, and that's more likely to be piecemeal rather than widespread.
But it all confirms what a small number of us on here have been banging on about for years - where in the trade press or the traditional representative organisations like Unite have similar arguments been made? Rough answer - nowhere