Google Plus in Cambodia is using for advertising than friends

Sabay today has published an article about no people in Cambodia interesting to use Google Plus much. Yes, of course, for me, I do not see many people in Cambodia using Google plus for normal communication or networking but they are using them for advertising their website, to publish content or expressing in general way opinion than the way they are using facebook for friends and family communication.

example content in Google+ by Cambodians

Why they are publishing content in Google+?
One first advantage of publishing content link in Google+ is about SEO (Search Engine Optimization), the link will be craw well by Google search engine.

The more people +1 on your link, the more people can search your content easily since it's recommended by many people.

For me, I don't see that facebook could index well your content since you have published many links in your profiles or page but Google + could do that like a charm.

How do you think?