Every human using Google is a customer. For most customers, the product is search results, and their payment is to let part of their screen be occupied by ads. For advertisers, the product is X pixels of advertising text, and the payment is dollars (or euros, or yen, etc).
Currently, the exchange rate between pixels and dollars is so extreme that it's not cost-effective to provide support to those customers who are only paying in pixels. Customers who pay in dollars (advertisers are one, but also people who have a paid Gmail account, or have bought more Drive storage, etc) do receive support.
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But that's all beside the point. The original story is about someone who paid hundreds of dollars for a phone, and received terrible support. Even if you hold the position that all free services are inherently exploitive, don't you think that someone who spent that much money should be receiving top-quality support?