Would you be okay to have those lists be “official” or “community” lists you could follow but not add Seasons or Episodes to Lists on your own?
I would not be okay with that, adding seasons to my personal lists is important to me because I want to specifically add the season, as an example, Season 1 of “The OA”, to my list. This would not work if I added the entire show page because I did not watch Season 2 of “The OA”.
The current Trakt has the feature of showing the % of items you watched on lists. This feature would not work without seasons, because a show like “The OA” would always count as not watched.
(adding individual episodes is not important to me, but i had to mention it in my previous comment.)