Yes, burnout and gatekeeping. Personally, I remove cert and education requirements from job listings and instead allow equivalent experience. That said, I do recognize that biased hiring practices means that some candidates show up with numerous certs to signal their expertise.

People with certs pass the automated HR filters. I don’t have certs, I have experience and research. Everything takes time, so one have to decide where to invest spare minutes. However, certs obtained at working hours at employer costs are nice work bonus