It’s undisputed that Amazon has a quota for attrition that managers must meet. The only question is how are they meeting it. Why is it so hard to believe that a manger who likes all of their employees would inflate their headcount request to get someone new to fire? It’s practically a mechanical result of the quota. Of course they wouldn’t go on record about this, it’s wrong and possibly illegal (the manager must have lied when filling out some paperwork). But it would be more surprising if it didn’t occur.