I don't want to smurf just to play with Blizzcon Friends

Blizzcon was amazing for me. I met tons of people and made some US friends even (I’m EU). Now I want to play on the US Servers to play with some of my new friends but I can’t use my EU Account. I don’t understand this at all. I don’t care about the items at all but where’s my level? Where is my favorite Hero? And if I play with my friend who’s on his level 600 Account, I’m smurfing! I hate smurfing and dislike it a lot that I’m forced to smurf.

Has this been discussed so far and did it get a dev response?