This line of reasoning is asinine. Perfectly defensible to say that Zoom is great for other industries, or orgs built with different structure. While eating your own dogfood is a confidence builder, it’s by no means a requirement for companies to do it 100%.
Also to suggest that Zoom is only meaningful as a product if you can run your company fully remote is laughably myopic; there is lots of value to having VCs between offices and teams, even if those teams work in-person.
Sure, Zoom has marketing material that leans into remote work. To avoid confused thinking like the OP you should note the purpose of marketing teams and not over-index on what they say.