I was thinking that they have the Mind Flay Glyph the wrong way round... It seems odd to me that we have to use a major glyph slot just to increase the range of our highest damage spell to be something that is useful.
I propose that Mind Flay should be a base of 30yd range with a 10% snare and you can glyph it to a base of 20yd range for a 50% snare.
I guess this only has the effect of freeing up 1 glyph slot in pve but to me it makes a lot more sense.