Yes, about five 9's of recruiters don't understand the tech on the resume or the job description. That may prevent them from responding.

But in general, they rely on you to self-qualify. So they are far more likely to call you and run through the list of requirements verbally so you can tell them if you have them or not. That also gives them a chance to pitch other jobs. Of course, if you say no to something the hiring manager said was a must have, you disqualified yourself, but that's on the hiring manager, not the recruiter.

This comes from being in a tight labor market. Think of it this way: how often are you contacted for jobs you're totally unqualified for, but they think you are? In this market, I see that a lot more often than the opposite.