It's true. Me and Wing Chun (my beautiful springtime) are getting divorced !
It's the upright stance. I believe this is a barrier to learning moves from other disciples. The hook and cross type moves from boxing have the top-half move. The angling-off with the stick again head moves off line. Judo moves have head forward and so does wrestling. (I wrote about chin up below, in another post).
I have invested time in the forms and 'being correct' but the dividends maybe minimal, given that the rewards from other disciplines are being removed. This is a point worth considering if you want to cross-train. Wing Chun could be a barrier to learning mmmmm ..... *if* the upright stance is creeping into your other moves unintentionally.
Actually this isn't a real divorce. it will be a separation of that element. The dummy moves will have to be less upright therefore. The arm shapes can look like other shapes too. The kicks are ok as you still sit down when kicking too, in other applications. That can stay.
Arbitration maybe needed to settle costs and payout for Wing Chun. Or she can pay me. Either way the association cannot continue the way it has been.