Flip side:
After spending a lot of time in the process, realizing that prospective employers give an extremely low effort to respond to candidates - no matter how much effort put into a cover letter, resume grooming, or discussion of why the role might be a fit - it's disheartening. Auto-declines are the norm. Posting jobs for legal reasons when there's already an internal candidate in mind is also undisclosed.
Between having to sign up for proprietary job application systems, seemingly advance to the next stage but never getting a call back like a bad one night stand, or taking months to make a decision, the power dynamic is quite unfavorable.
I think employers are finally discovering that applicants are, for lack of a better perspective, using the same kind of attitude as they have been receiving for years.
Note: I am fond of saying the phrase "Good help is hard to find" because it is, and considering the US has had absolutely appalling wage growth metrics - disgusting even - what motivation is really out there?