Anerlich, you're forgetting how the deadly footwork can neutralise shoots/tackles
Actually, I find wing chun skills to be great in getting into and jockeying for position in the clinch (No, seriously!):
working the inside,
passing from inside to outside and vice versa like the swimming exercise,
getting head control,
keeping constant pressure on the head/neck etc with lots of short range quick-changing strikes to make every second at close range count in wearing them down and maybe even get a chance opening for a big one,
chi gerk style trips and takedowns,
short jerks back or forwards to provoke an overcommitment so you can get back in and stick to take advantage of the offbalance would have to be a particularly good one for wing chun energetics...
Plus sneaking elbows in past the judges!
- er, I mean, and good for competitions where elbows are allowed!