Process Objection
I think this issue underlies a lot of the other ones we're seeing. Several of the issues raised on my "home" stack (RPG.SE) with regards to poor contrast, items distinguished by color only, etc., garnered the response "that's a valid concern and we'll look at that when we start thinking about accesssibility issues, after the new layout is completely rolled out." While I appreciate that it is on the agenda in the first place, the appropriate time to be thinking about accessibility is day 1, before planning, let alone making, any changes.