Don’t know what they are going for.

A historical mix of conflicting paradigms all bundled in one huge software?
Slightly panicky catching up with competitors of a market they are slowly losing, thus making the above even worse?

I don't know either.

It all gets worse with a certain type of stack used in corporate environments, consisting of Google accounts, MS accounts, some sort of invisible 2FA (the 2nd factor is tied to a device)...