3rd Party Apps are now a bad thing?

I was always under the impression that having a strong developer community was a good thing for an OS to have. I've noticed lately that I was under the wrong impression and that really only the official apps count when determining how strong the apps situation is for an OS.

Shouldn't the fact WP has many strong alternatives for majority of the popular missing apps account for something? Isn't this a positive thing worthy of mention when speaking on the app situation with WP although, yes, there isn't a lot of support by the major players for WP?

And this has nothing to do with the verge or their scores for WP apps. It's just more so a curiosity.

When did things change as far as 3rd party apps being a bad thing or not worthy of mention when explaining the app situation with WP?