Yes, I had access to some of the She-Ra storybooks. My favorite as a kid was "The Crystal Castle", which did feature Hordak, Shadow Weaver, Horde Troopers, and Queen Angella as the Guardian of Crystal Castle - very Sorceress-like. To this day, that's how I see Angella, with Light Hope being "the spirit of Crystal Castle". I accepted that there were all sorts of crazy continuities out there. Despite all the confusion in the depictions, what guided me was the packaging and the placement of the characters. The marketing, mini comics, package design and placement of the figures at retail TOLD us that POP was SEPARATE from MOTU - I think this is where things went wrong, and played a part in the decline of BOTH lines, since the cartoon suggested the exact opposite.
I COULDN'T get POP figures because they were "for girls". My mother did break down and smuggled me She-Ra - which I always hid from my father. I was not allowed to get the other POP, though I REALLY wanted them. So, in my play time, the Horde were enemies of He-Man - basically, She-Ra had freed Etheria, went home and helped fight against the Horde on Eternia! Sound familiar?
Because I was BANNED from getting POP, I did develop some resentment for the show - though I preferred it to He-Man's show. To this day, I see Catra as the sorceress leader of the Etherian Horde, while Hordak is trapped on Eternia - she becomes She-Ra's "Skeletor" on Etheria. I think our perception of the brand is shaped by our own experiences.