Cookie cutter argument; look, I'm glad you like your sorc, but how would you feel if whatever basis you used to build it were suddenly changed? I built my character around the rules as they existed at the time, but somehow I'm the one at fault? I don't think so.
Now, it was recently pointed out to me that suggesting that this was cheating was offensive, and maybe it was, but only if it is true; the fact of the matter is that any DM who tried this in PnP would have been lynched by his players, or at least stuck with the pizza bill.
At the same time, any number of people have called me a cheater, despite the details of the situation, and no one has called them out at all. Oh, sure, the cheerleaders will disagree with the devs when a change affects them, but anyone else is just whining. I have no respect for sycophants and hypocrites.