well all artistic experience is subjective in nature.

Oasis is not my favourite music, but I think maybe you need to listen to some more varieties of folk music. the connections are there.

I can see songwriters using the elements they have learned from Oasis to write songs about their lives sometime in the future - if it hasn't happened already.

You simply cannot speak for what may inspire an artist at some future time.

being prescriptive in the way you are, earns you nothing but an empty folk club - and sad little threads saying where have all the folkies gone.

they've voted with their feet.