Some of it seems like overkill. Now that Google Cloud Shell is a thing, the correct answer for small teams of people who are not security engineers is usually just "chromebook".
1. We are a company that develops for iOS, so we have Apple computers and laptops... Nothing to be done about that. 2. We are on AWS, switching to Google Cloud is definitely not for everyone, definitely not just for this feature. 3. Even if we had not been developing for iOS, some developers really value working on a MacBook, and in a highly competitive recruiting market, that's a factor, and not an insignificant one.
Also, do you know of startups that use chrome books or toshiba zero client?
Also keep in mind that laptops are used by data scientists and management