I could not come up with a word that defines your state(maybe: abolished/annihalted!).
But the cause of this state can be defined relatively!
Ethnocentrism is making value judgements about another culture from perspectives of one's own cultural system.
It is the belief that one's own cultural group is somehow innately superior to others.
From software development process perspective, we can replace the word culture with XXX team.
What surprises me from your query is that if images/buttons/features were added,it means web designers were kept in loop of the changes, but why not the UX people?
On a lighter side, we can enhance the following link by adding the third slide saying "How the UX was forgotten!" for your current scenario! :-)