When you decide whether to release a product on a certain environment, it's not as simple as something like: a) if it works, or seems it would work, on that en

When you decide whether to release a product on a certain environment, it's not as simple as something like: a) if it works, or seems it would work, on that environment, then we should release it there. or b) that environment is a competitor, so we shouldn't release it there. If you think it should be that simple, you never worked with a real product manager responsible for products with millions of users. Having a product to support a new environment isn't a trivial effort for devs, QA and a bit design. At a particular stage of the product (think about the goals they want to achieve for Inbox at this stage, which I think is something along the line of polishing the product based on mass but controlled feedback), I would've probably made the same decision if I were the product manager.