In the same way that AWS wasn't originally certified for government work, and then developed GovCloud: they realized there was a lot of money in it.
If supporting GDPRs is a requirement for having European B2B customers, SaaS providers are going to start certifying against and architecting around that.
If supporting GDPRs is a requirement for having European B2B customers, SaaS providers are going to start certifying against and architecting around that.