Hard to say, their job listings[1] don't include the salary. Their listings do say "All salaries are transparent within the company and are set above local market rates," so maybe all it takes is one high cost of living hire to raise the rates for all employees with the same title?
We’re rolling it out in the next week 2 weeks. We will begin publishing salary bands on every job posting. Internally, we will publish levels and sub-levels for every job.
This wording seems philosophically incompatible with "One Job, One Pay" (OJOP), even if it's not actually logically inconsistent with OJOP "per se".