People don't like change. If you think you have a good idea, and you want to incorporate it into a product, you'll often find push back. Especially in the case that it has widespread affects. If you nail it you will hear all sorts of praise, if you fail - ridicule and insults.

They are trying to push forward with what they think is a good idea, and best for the products future. Doesn't mean they're right, however there is the argument that the customer doesn't know their experience could be improved.

Time will tell in the WordPress case.