Not quite, because:
Therefore, publishers and indie devs see a benefit from putting games on Game Pass. What's so difficult to understand?
So they get benefit from Game Pass.
There are many AAA and AA games on Game Pass for which MS is a bless, specially those who would just loose money because their games are not casual "cinematic experiences with outstanding set pieces".
Doesn't make a difference, if anything, late stage is when games (specially AAA games) need a sales boost, that's why publishers aggressively discount them so they can get more DLC sales.