***YOU'RE "limited" experience is quite a universal one, actually. Wing Chun is a close quarter striking system, and the whole "to shoulder or not to shoulder"....or the..."one punch or many" debate that's been going on is reflective of that experience.
The longer range punches used in boxing like leads, crosses, round punches, and overhands....and certain longer range and arching/round kicks (because of the footwork and the shoulder extension used in those kinds of strikes) do cause problems...
since it's a longer zone/distance being used than the more shoulders-squared-up-parallel-to-each-other movement used in wing chun.
And the emphasis on the main centerline (and attacking the center) emphasized at longer ranges can also be problematical when not in very close.
Yes, wing chun punching in the classical sense will use some shoulder torque, but the emphasis on the waist and elbow source of power limits the amount of shoulder torque used (as does the wing chun footwork and basic structural alignment)...
and that limitation in the amount of shoulder torque (and the corresponding boxing-like footwork)...or should I say, non-use of such things...is the reason why wing chun fighting requires a certain close range zone.
Many people say you can make up for this with your wing chun cutting and angling footwork and timing....but I've yet to see a serious matchup of real good boxing skills and wing chun wherein the wing chun fighter got the better of the situation
without doing some of the above mentioend (non-classical) wing chun boxing/kickboxing-like things - when not in close. AND TO HELP GET CLOSE.
Hence the "charge" made so often that wing chun sparring/fighting looks like some form of boxing, kickboxing, or JKD.
My contention is that, in order to be successful, at certain ranges it will have to look like that - against a skilled boxer/kickboxer/Thai boxer type...regardless of how knowledgeable and skilled the wing chun guy is - at wing chun.
Unless of course you want to do these boxing/kickboxing-like things and still
say it's wing chun.