If I were to answer your every point, the answer would be immense. But your text focuses primarily on one point: the supposed qualities of Morrowind as an RPG: things like the quests, spells, guilds, items... And in fact, in all these things, Morrowind is better than Skyrim, it's a better RPG. I never denied that. But what I said is that it's a worse *game*. As I said, I still think that Morrowind (and all the TES series) is horrible as an RPGs. To say that one of the games is less horrible than the other doesn't seem like a great merit: dialogues in Morrowind are a bore with that "wiki-model" where all NPCs are basically automated lore dump systems. Not to mention that the combat is really atrocious (I think it's one of the worst combat gameplay that I ever played), I don't know how someone can tolerate it. At least in Skyrim the combat usually ends quickly enough so I can go around doing whatever I was doing. I couldn't have fun with any of the mechanics of Morrowind, and couldn't even get interested in the story - the little that held me to the game was the exploration which, now, looking back, was no big deal after all. But then, I had no other references and other games of "open world" as there are today to compare to.
And, yes, YES. My definition of exploration is somewhat closer to "walking around and looking at 3D models". Powerful items... Are RPG elements. I can't seem to care about things like that since I think these games are horrible as RPGs. Why would I care about some powerfull item if I want to avoid combat as much as possible? The only thing that Morrowind was indeed better is the verticality, but since the game was ugly as hell and with a short viewing distance, I didn't feel rewarded enough even when reached somewhere high. (Current MODs vastly improved this, but not enough to be comparable with Skyrim's landscapes when it's also modded. And anyway, many here believe that MOD should not be taken into account in the comparison, so...) But notice that I'm not looking for approval here, I'm not asking if anyone agrees with me, not wanting to convince anyone. What I'm saying is what I think of the series: that it's terrible as RPGs, but that in every new game in the series, the exploration has become more and more interesting. But I use "exploration" in a completely dissociated sense of anything related to an RPG.
(EDIT: As I said, think about "EuroTruck simulator" when I say exploration.)
And for me, that's fine. I hope Bethesda continue to advance more and more in that direction, if possible, by returning tools like levitation, climbing, and making the cities to be part of the world, seamlessly (as some MODs already do). Doing this and refining this formula, I will probably like the new games more and more. Because I just don't and can't see them as RPGs, and when you say that they are terrible as RPGs, to my ears, is like telling me that Planescape is terrible as an action game.
Simply, this is not what I seek in them.