This will have a huge impact on a lot of organisations, for example those that have a communal SharePoint, or shared document page: files shared from ex-employees for critical documentation is going to break.
Arguably, this situation is already broken right now. If an organization can't be bothered to use their tools (Sharepoint and the wider O365 ecosystem) correctly, it's entirely on them.
AFAIK Sharepoint doesn't have these limitations. The idea is that in companies OneDrive should not be used for permanent stuff. Which is strange, to be granted, but after all using OneDrive for company documents basically means they are being shared out of some personal space that doesn't belong anywhere.