This isn't about my view, this is about the Wikipedia manual of style, which states "by default, write all articles in the present tense, including for those covering products or works that have been discontinued. Articles discussing works of fiction are also written in the present tense." The Verve is a work or product that has been discontinued, but it still exists, therefore it should be written in present tense. 
 The only way a band wouldn't exist is if it was never established. Once a band becomes a band, it remains a band, in wikipedia terms, permanently.