It's been questioned before, and my opinion is the same as ever.
I HATE rooted hair.
Mattel wants to get away from the 'PoP are dolls' philosophy that the originals had. Their entire mission statement is that all the toys now Vintage, PoP, and NA will look like they were all meant for the same line... that means Frosta gets to stand next to Teela without any differences.
Personally, I always thought the rooted hair was garbage back in the 80's. It was only good for about a week before it got matted and frizzy and basically looked horrible. Unless you were supposed to sit and comb their hair... which I never did... and never would do now.
So basically I want the PoP girls to blend in with MOTU. That means sculpted hair. Adora and She-ra look perfect the way they are
As for 2 or 3 extra heads... O.o
While I'm all for options... Rooted hair requires a lot more extra tooling dollars, that "I" will never get any use out of... I'd prefer that money spent on something cooler.