So I assume by customer you mean advertisers and by product you mean the users carrying out searches. For their commercial search results I'll grant you that t

So I assume by customer you mean advertisers and by product you mean the users carrying out searches. For their commercial search results I'll grant you that there's an incentive. But for their non-commercial search results why would they care? That's how it used to work, you couldn't delete a domain from the paid results, but you could make it disappear from the unpaid ones.