I thought of the gap between seasons as a disadvantage, but I'm wondering if there may be a benefit in the world of streaming. People may have forgotten much of the detail for WoT between seasons - not a problem, re-watch S1 and S2 in the weeks or months leading up to the drop of S3. Amazon boosts their watch numbers as folks prep for the new season.
Not much difference between what many of us did with the books - re-reading all the previous books whenever a new one was published. But I think there is a bigger benefit to the streaming company as they still own the show. There is only one place to see it. Amazon controls advertising (if present) and folks are more likely to check out their other offerings due to convenience.
Publishers give that up as we own the books and can re-consume them at will.