I don't think that picture indicates in any way that there are no Google Services on those phones. I've had multiple Chinese phones, and all of them had both their in-house app store (every brand seems to have their own) and also the Google Play Store. And obviously things like Google Play Services and Google Maps are installed too, way too many Android apps wouldn't work without them

This isn't even a China-exclusive strategy, Samsung does the same with their Galaxy Store.

Aurora Store is not a separate app store but is an alternative front-end to the Google Play Store. Combined with microG it should be possible to get all the Google apps.

There must be a reason why Aurora Store is being advertised, though. Why would they do that if they could just pre-install Google Play Store and standard Google applications.

Update: End of 2018, I bought a Huawei phone with GApps. I remember that two or three generations later, Huawei was not allowed to include GApps anymore.

Huawei is the exception due to specific sanctions on Huawei.