Gmail had good UX, and people went to it for that. Now it has a few flaws. As people who care about UX, these flaws are worth discussing.
Some 'hackers' don't do UX, which is fine. So those people may find the topic boring. But many people here are making things, and find the UX direction of the leading web email client interesting. If only to see future trends in web site development. Other reasons this is interesting is to see how they are monetising their apps more, and how they are trying to make email a worse marketing channel.
Having worked at Google, it is understandable if you get annoyed when people bash your company. But that comes with being successful. So don't sweat it too much.