Switching 2nd professions to avoid using refund points

Once you get past ascension and activate the profession quests, you can switch your secondary profession to gain back all the attribute points used by secondary attributes without using refund points. So you can just switch out of a profession and then back to it to reset your attributes. Are there any disadvantages to this? Because I haven't noticed any.

I'm guessing there arent any real disadvantages besides having to switch ur class around. But attribute points arent too hard to earn, so its not a great advantage either, otherwise they would have done something to prevent it.

I can't remember the exact number but don't you regain refund points every 250-500 exp gained? I think you could get the back fast enough that it doesn't really matter ...