I've been playing BRD since phase 3 beta of 2.0 and I have been enjoying WM ever since the thing has been released. I also think that the amount of people who does not like WM are also a small vocal minority. Most have adapted but I can't say they like or not. Most of the BRDs I know like the song, though they did not like it at first (because you probably wont see the benefits of WM until EA and IJ) but after hitting lv60 when they have everything, they started to enjoy it.

OP: If you can you should always prioritize your Barrage with Empyreal Arrow. If you're not in WM than just do it on Heavy Shot. If you are planning to go to endgame as brd, It is as others has stated, You should try to stay in WM as long as you can. If You have to move, I suggest you use the LNC skill Feint (Pretty early lvl LNC Skill). As it still get the WM buff but it is not on the Cast timer. Or you can simply just turn it off and turn it on. Atm brd is probably a class where you have to know the fight really well to do comparable to good dps.