The injury rate of Amazon's warehouse employees is the highest in the industry[0]. Annual turnover is almost double that of the retail and logistics industries [1]. On top of that, as you note, the work sucks. I would call those conditions bad, and the turnover suggests that the pay is not sufficient to retain employees.

[0] www.washingtonpost.com/technology/2021/06/01/amazon-osha-injury-rate/

[1] https://www.adpri.org/wp-content/uploads/2020/07/19220244/Th...