I’m not sure I have any particularly valuable insights. After finishing AMoL, I don’t think I’ve re-read the series again - or maybe only once (so it has been a long time though I surprise myself by what I remember). But before that, I re-read the books multiple times, starting back when the series had only reached LoC.
In many ways, the books ended for me in KoD. While the last 3 books were an ok read for me, I never quite connected with them in the same way (nothing against BS - I enjoy his series that he writes).
Season 1 reminded me that, despite thinking that the last 3 books were weaker, EoTW was still my least favourite. In fact, I wouldn't have read WoT if I had only bought book 1 when I was 14. I foolishly bought 6 books in one go thinking it would last me a long time. The outrage of wasting my money (and it was a lot of money for a 14 year old) pushed me to slog through book1 and into book 2. Fortunately, I started to enjoy the series around then.
Harem storyline: It is funny, I largely forgot Rand had a harem romance. The proliferation of Harem and Reverse Harem storylines in novels/light novels/webnovels (across English, Mandarin and Korean ones that I read or Japanese Animation i watch) are such that I now drop those books without question. Amongst the lightnovel/webnovels there is quite a clear divide between readers who are willing/love to read harem and those who absolutely unwilling to even entertain such a series even with a minor side plot of harem (which I fall into the latter). It was actually a strange relization for me that even with a series I once loved and re-read so many times, this trope (even reasonably minor in the grand scheme of the story) remains a deal breaker. I am glad they went with the polyarmory storyline - I wouldn't debate whether it was the right thing to do or not for series - this is simply discovery that the trope is an absolute deal breaker for me.
A big part of the charm of the books for me in my teen was the gender dynamics. Those exaggerated, often comedic misunderstandings between men and women. All the “wool-headed men” and “light help me, women are impossible” moments that peppered the series were reflective of how my parents’ generation spoke and thought. I initially thought I missed it. But as the series went on and I imagine how that played on screen, I am glad they tone that down signicantly (probably largely absent). Firstly, I don't think it can translate to screen (or dialogue) rather than in the character's headspace. Secondly, it is quite dated - I don't know if that comedic element would translate to the generation after mine (my nephews' generation). It is not how my siblings and I would interact so that may be largely lost on them. It is hard to know.
hmm... I guess the only insight in all this that the show has shown me is maybe I have outgrown WoT. I remember it being a big part of me - but I still feel a great love for it - which is an odd feeling.