I'm agnostic on these changes, but I'm always curious as to what it is about. In this case I'm particularly unsure if it was about endgame or leveling? Sorc has been a powerful leveling tool for a long time, and there has recently been an uptick in endgame sorcs, so maybe a little of each? WHy did you choose to nerf DPS is a pretty flat way as opposed to reconsidering some of the defenses given by EK or more targeted nerfs to the strongest spells (like meteor swarm)?
I haven't done endgame sorc in years, but I was considering it for my caster coming off some TRs. They are really fun to play. I've had a lot of fun with alchemist also, but my test run at the end of a racial was concerning squishy even for a slightly under-geared trial.