During her tenure it moved from something I wouldn't even consider using, to first choice for my new startup.
- Much less people with proper platform knowledge (not even talking about certified).
- Not much trust on deprecation policies (AWS keeps running very old and deprecated services virtually forever, there’s no guarantee GCloud would do the same given Google history).
- Not from personal experience but customer support is not top notch as with other providers from what I have read and heard.
In my opinion those three reasons alone are big flags for many corporations, which might prevent them from getting the big contracts.
Edit: formatting
That said, I'm not sure I'd use it for anything that might scale heavily with datastore writes. They get expensive very quickly if you can't cache and group the writes.
On top of this, there is the not-so-distant issue with the sudden price hike of Google Maps API, which made many companies struggle (in this case especially small ones).
We've been changing a lot of infrastructure, adding features, fixing bugs, all without users being affected.
I'm personally very excited about the Second Generation Runtimes, which have been worked on in parallel, and run the runtimes unmodified.
The engineering resources to migrate was also a problem with the whole stack having needed to be updated.
Most enterprises don't have a clue about computing though, so I can buy that they would prefer bling like certificates to getting a contact who is a real engineer.