a person who purchases goods and services for personal use.
And definition of “customer”
a person or organization that buys goods or services from a store or business.
In both cases the consumer or customer is the person paying. Who is paying and what is the “product”?
I hate to go back to the tired saying but, the people who search on Google are the “product” that Google is selling to the customer - the advertiser.
Why would anyone expect Google to optimize for anyone else except for the paying customer/consumer?