This isn't only happening there, a lot of Wikipedia pages basically have someone revert a lot of changes they don't agree with, while you could bring this up on the talk page this takes a lot of time and knowledge about how Wikipedia works, for more controversial pages this often works out that those whom have most time to spend get to decide on the direction and point of view of the article. This might even be just small rewordings and copy edits to put something in a more or less favourable light.