Yes, it is. That's the actual problem and so is everything else about the attention-hijacking industry.
But also that the popups do not conform to what GDPR demands. Remember, rejecting everything should be the same amount of effort as accepting the settings, and by default non-functional stuff should of course be turned off. If websites followed those rules, we would have way less of a problem here.
If only there were some way to eliminate that need for warnings....