I'll get more specific.
At least, I must assume this is the intended communication point, because most of the first paragraph about accessibility was devoted to alt text.
1. Figure out what the new visuals are going to be.
2. Roll out the new visuals. (The site will be just as non-compliant with accessibility as it was before, but it'll at least look niftier.)...
4. Migrate the new visuals over to the new design system and components, thus achieving full accessibility and more maintainable code and pages in the future.
a) Accessibility only comes in halfway through the process; during the technical part, rather than at the design part.
b) New visuals were chosen which actually pushed the level of accessibility BACKWARDS. Badly.
And this kind of disingenuousness is, frankly, slimy. :(