This seems to be another victim of EASA unity. I know at least one authority that is telling me that the revised guidance is applicable for trainee pilots only and does not cover someone who already holds a licence, therefore not valid to go from UK to EASA. They claim this was direct guidance to the authority from EASA. I know of at least one OTHER authority that says this is acceptable and are happy to accept the exams for UK to EASA purposes.
With regard to the exam validity as per FCL.025, if you look at your screenshot at FCL.025(c)(2)(i), you will see that this point should keep the exams valid for the majority of ATPL holders.