"get the best value and user experience by migrating fully to Exchange Online or Microsoft 365."
Haha, sure, but for whom? Customer or company?
It is not so easy to answer, because we really have problems to outsource data to providers not originating from our country for many customers.
So to many customers it is not the best decision at all, housing company data by themself still serves a purpose: to be the owner of it, even if money runs short or the States decide: Europe is not our friend anymore.
And this will be for ages, especially when it comes to public/government data.
If not on Exchange, than anywhere else. But Exchange was and is still nice. So it might be kind to hear: "the best value and experience relies on the customers opinion"