I do think that it's important for Scott to hear all opinions on POP. I think he thinks your opinion is the opinion of all POP fans because you and Darkspecter as so vocal. Your being vocal is great... but his perception wouldn't be correct. So I am not sure what these "core arguments" are and why they matter now when both Scott and Eric have made clear what the approach to POP will be.
There are a few people here who do not agree with what you're looking for in the Classics line when it comes to POP characters. For example, I would be really disappointed with a Mermista figure based solely on the vintage figure. The Filmation design, with some of the toy details (bodice, shell, etc.) would be so much more aesthetically pleasing... to me.
I think this episode was good if for no other reason than it states both the 4H and Scott's ideas and plans clearly. There is no argument.
That being said, you can certainly dislike their choice about the aesthetic and the direction they are going, but they have clarified their approach.
I'd also like to point out that, thus far, there has been a decent mixture of both cartoon and toy influence for POP. Obviously they have used the cartoon and style guide as their primary sources. But they haven't ignored the toy designs at all.
Catra: cartoon (with toy influences... shield, sword, silver mask)
She-Ra 1.0: cartoon (with toy influences... gold sword, shield, toy mask, comb-axe)
Bubble Power She-Ra: toy (with cartoon influences: bodice)
Bow: total combo (really nice toy detailing in the accessories and patterns used on the armor, as well as the toy head)
Star Sisters: poster
Swift Wind: cartoon
Frosta: cartoon (with toy influences: gauntlets, boots, belt, staff/wand, shield)
Netossa: cartoon (with toy influences: shield, boots, gauntlets, cape color)
As for the arguments that you and Darkspecter make all the time, the ONLY case where I think rooted hair is a good idea would be Entrapta. Just as Grizzlor used soft goods to recreate his "action feature," so too should Entrapta's "hair" be rooted for the Classics line. Honestly, it would just be less of a headache for all involved in creating her, I think.
Secondary heads with rooted hair would be a waste for me. I would never use them. Plus they would take resources away from the rest of the figure in each case.
I hope that the 4H keep taking some liberties. Bow is a triumph. I want to see the POP characters as though they might have evolved from the early MOTU mini-comics. The more the 4H work on POP characters, the more I see people here begin to love these characters. That's exciting. It's a win win for everyone. It's just more fun.