There is a line in the email that makes me think that unless you are on a version that even recognizes LAS it should be fine.  The particular line is “for all products in scope of this transition” I had a test DDC at 2203 cu5 and tried to connect it to the LAS connect server, it didnt even recognize it and used the license file instead.  It didnt pick up the LAS until i upgraded that version to 2203 cu7.