You're making one huge assumption here: that the certification actually certifies anything at all. As a matter of fact, it does not. Certifications are useless. Having or not having a certification is no indication of presence or lack of programming skill.
I'll go further, though. The certifications do you, as the public who makes use of developer services, a disservice. They imply that someone has verified and certified "a baseline level of competence" - but that implication is a fabrication, a lie.
All the certifications do, effectively, is give people who shouldn't be in programming jobs working for people who shouldn't be hiring programmers.