I will answer this way.
This is done unintentionally.
In order for you to try ALL possible ways.
Well, to think outside the box.
The first time I encountered a very similar situation in the module - “Windows Privilege Escalation”
For the sake of interest, read how the poor people suffered there.
https://forum.hackthebox.com/t/academy-windows-privilege-escalation-skills-assessment-part-i/