[Ekaros]

I wonder how far this de-bundling should be taken.

Should actually there be complete ban for bundling more than single program in one solution. Like you could not have email and calendar in one, or something like Word and Excel. Cleary offering email+office suite in one is too far. And what about someone like Adobe, surely each of their softwares should be split up to own subscriptions and there should be no discounts for getting multiple at one time.

[maxerickson]

Why stop there? No reason for the program you send email with to have message editing capabilities.