I'm not sure I would characterize it as optimistic. The subtitle is "Fifth Times A Charm!" and the bulk of it is talking about how many times Google has (mostly unsuccessfully) tried to make a product in this space.
I find Ron Amadeo's articles are often much more critical of Google than others writing about them. If I were to summarize his attitude in much of his writing it'd be "Come on, you need to do better than this, Google." It's refreshing because normally writers who cover a particular company almost always view them through rose colored glasses and minimize all the mistakes.
I have a generally positive view of Ron's work, but there's been some tragic missteps of late. This is a trashfire of a piece justifying incredible incompetence by Google[1], and suggesting a major vulnerability 'isn't a big deal': https://arstechnica.com/gadgets/2017/11/pixel-wont-get-krack...
[1]Google had months of notice under coordinated disclosure, and it took them a couple months after it went public for the fix to finally make it to Pixel devices (which is to say, most other Android devices still aren't patched). Since ROM authors fixed this in like two days, the fact that Google couldn't do it in five months is inexcusable. I actually suspect this may be part of why the Android Security Lead just shifted to a massively less important position at Google around the end of the year.
