The Wings are entitled to that spot on the ice as much as the opponent. It's called positioning and it's an important part of the game. The whining is just jockeying by coaches to get calls, but it is mischaracterizing the play and strategy which is entirely valid.
from the rule book:
As a side note - Lids was the king of using his stick to make himself "bigger" as is now forbidden in the rule. He would just hold his stick parallell to the ice in front of him.
Exactly I don't understand why people complain about it. The wings are entitled to their spot on the ice. Every team does this, but yet the wings get pointed out for it the most. I saw a two on two yesterday where the rangers player passed the pucked as contact was made and continued to push the wings defender towards the boards. Nothing was said about that subtle interference.