If a 'Wheel of Time diehard' includes someone in the middle of their 6th reread, then I guess I contradict your assumption. I thoroughly enjoyed the 1st season, even with its minor flaws, and predict the 2nd season will be even better. I generally enjoyed the plot deviations and saw them as improvements.

If anything, a WoT fan that is honest with themselves should a) be able to overlook minor flaws, since the books have plenty, especially book 1 and b) realize that plot deviations are a must because an at most 8 season series cannot follow all of Jordan's arcs and details faithfully - combine, rearrange, and cut is absolutely required.

To me, the heart of the story is there, the characters are well-acted, and the music is great. Sets and writing were good in season 1 with some room for improvement, IMO.

I am actually pleased that you think the world-building "borrowed bits and pieces of different Earth cultures and threw them in a blender." That's completely intentional and follows from the metaphysics and history (e.g., the Age of Legends and subsequent breaking of the world) in the books. It might not be everyone's cup of tea though, sure.

Finally, with a small sample size of friends and family I am having a much easier time getting them into WoT than I did GoT (the last fantasy show I really got into). Reasons (I am paraphrasing their words) include:

More accessible color pallette and atmosphere

Less gratuitous violence (especially towards women)

More magic and "fantasy" feel

Refreshingly not a standard medieval setting

Being able to share it with more people in my circle has obviously enhanced my enjoyment. They are all super pumped after seeing the season 2 trailer.