For things to change, there would really need to be something like:
- data protection fines the whole of the customer list of Amazon/Google/MS cloud
- data protection fines a high-profile company a lot of money for using Office365
- a court forces a public institution to cease using Office365 (no fines possible there)
- enforcement accelerates to a point where, from complaint to fine, things take only a few weeks, instead of a few years, so that lots of medium and smaller businesses are hit. Currently enforcement seems to be starting with the big cases, and being bogged down in the complexity of those.