Recruiters have different levels of experience: same as software engineers. Some are just starting their career, some have more experience. Most recruiters didn't go to school for recruiting; they usually landed the job based mostly on their inter personal skills. Most lack any context around technology. In that light, making a judgement call about a team based solely on the recruited seems suboptimal. If they make mistakes, most would be happy if you point it out to them.

Everyone is trying to help each other; don't let go of potentially great opportunities due to these misconceptions.