The fact that Google is starting to roll out the ability for Android apps to run as Chrome apps suggests that they are aware of the limitations of being "web only". It also stands to reason that if they're going to soon allow Android apps to run under ChromeOS, you should be able to develop them too, no?
To boot, the Pixel's relatively decent hardware, high-res display, and touchscreen just seem like it would be ideal for testing Android apps if it could be done natively.
I doubt it will ever be as simple as I would like. But I can dream.