Product teams care about UX copy, but often don't involve content strategists or UX writers until a project is in its final stages before launch. The copy in a product, just like the visual design, user flows, and navigation, are all tightly connected pieces of the overall customer experience.  While it may be easier to simply include lorem ipsum copy as a placeholder until the design and flow have been finalized, waiting to include your content team until the 11th hour isn't the best strategy for creating a great product experience.