Naming and Renaming of Literature and Concepts of Sikhi.....

[Logical Sikh]

I've seen in recent past ( 20-30 years ), People have come up on new names of GURMAT ( Nankian Philosophy )....

If a geographical section of Sikhs can come up with or rename Gurbani concepts i.e. Gurmat as Nankian Philosophy,
Then on What basis do the same people Object the panth to rename Bachittar Natak as Dasam Granth ?