is grubby a dumb software?

[François Patte]

Bonjour,

For a long time now grubby has replaced grub2-mkconfig to update the
grub.cfg file. From this time, I have to correct the kernel update
manualy with grub2-mkconfig because every time grubby chooses a wrong
partition as the / partition.

The choosen partition is not mounted, it is empty, with no boot flag....

Why grubby chooses this partition? It is so stupide that I am wondering
what is the way followed by grubby to to this?

Thank you for any light.