If you submit a resume to a recruiter (or worse, online job posting) and get to the hiring manager you've absolutely gone through a bunch of formal screening steps. However if, as I believe GP is describing, you're able to connect with them through a side channel (such as a referral) you usually haven't gone through the formal screening so much as you've skipped it entirely. That obviously will dramatically increase your odds of success but it's not the same as getting through the resume scan and HR filter