I think the opposite. Charlotte and Sasha have put on one very good match and a bunch of other middling to sloppy ones, that we've seen over and over again to the point where they become both uninteresting and the result doesn't matter because of the 50/50 booking. It's devalued the title and the whole thing and nobody has come out as being better then the other because they constantly beat each other.
I mean, at Roadblock, they had a 30 minute match because - well, more is more - that dragged massively in parts, and had an ending so dumb and backwards, it didn't make a lick of sense. Why is the heel making a heroic last gap victory? Why is Sasha tapping at 2 seconds left when she can hear the crowd counting? Is she that stupid?
Fact is, I can tell you about the characters of about 6 different women on Smackdown. I can do the same thing for like 3 women on Raw (just about, Sasha is just "The Boss" and thats about it) and one is Lana.
Also it's not just Total Diva's stuff... Alexa and Becky is just a straight up coward heel vs. fighting face type of think. The Natty / Nikki / Carmella stuff is sure, but then we have Cruiserweights fighting over a women, and Rusev and Enzo/Cass fighting over them hitting on his wife... is that any less Total Diva-y?