Looks like the author has partially succumbed to Hello World Fallacy. His first extremely simple experiment (I'm reluctant to call it 'app') was successful and he is extrapolating this in slightly too optimistic direction.
Because it's standard HTML with common frameworks, I then have my pick of docs/examples/tutorials/mailing lists on using those frameworks to build something bigger, rather than being stuck with e.g. only Android resources.
I think that's what the author is basing his positive evaluation on; he's got to the point where the Trigger.io technology has disappeared into the background and is just "magic". He recognizes the pros & cons (e.g. needing to be online to deploy), and is excited to use Trigger.io.