In theory, if you know your stuff, you shouldn't notice any difference, which is the name of the game - they are trying to stop the database queens, and having some success by all accounts.
Part of the issue seems to be that, if an ATO was unwise enough to write their new syllabus training material to only satisfy the published learning objectives, their students come unstuck in exams because of the liberal interpretation the EASA examiners apply to those LOs. For instance in the new syllabus SSR and DME are taken back to PPL level, do we really think they have ditched all the detailed questions they had in ECQB 6/7? Based on past performance I don't trust them to have done that. I have also identified ATOs teaching for new syllabus exams with old syllabus material - there has been stuff added in!