In the first clip, the main article sought to distinguish itself as being better than Second Life. The second clip is from the Discussion page where there is a bit strutting and barking about what's a "real" simulation development environment.

It's not surprising to see this editor note on top of the Wikipedia article about Croquet:

" This article or section is written like an advertisement.
Please help rewrite this article from a neutral point of view."

Even an advertisement would be more unbiased, avoiding comparing the product to the competitors'.