why the hell was the master defender ability moved up to tier 5 in the arcanotechnician tree?

I did not notice I had to redo my enhancement points at first so when I finally found it again I see I can no longer even use it unless I redo my other tree. this ****ing sucks.
if getting rid of uncaring master was the reason for the stupid change then put uncaring master back in and drop master defender back down to where it was usable, or just put it back where it was and stop catering to the clone an "optimized build" idiots that probably never even look at/use it in the first place!