There's a different between being "able to" get an information and "easily have" an information.

Logs still require someone to aggregate them, analyse them and present them in a form that's easily accessible and understadable by managers and also always up to date.

Teams will make all of this available without the company having to spend resources and manpower.

It's also illegal in the EU to use data for purposes other than that which it is collected for. A company can't retrospectively use network logs and badge logs to track office attendance unless they specifically collect it for this use.

It would be very challenging for companies to retroactively change this without it being successfully challenged in court (you can't really rely on consent after the employment relationship begins).

This is opt-in by the end-user and disabled by default, so represents a genuine opportunity for employees and employers to decide if they want to gather this information and if so, what the opt-in/out procedure looks like.

This enhancement seems like a decent improvement on an existing feature. Folks are up in arms about a privacy problem which may exist in the underlying, pre-existing feature (updating your presence in the office in Teams/Outlook). This just simplifies the process for the employee to comply with whatever their employer mandates.