obituary for the Sugababes

Music Rather lovely obituary for the Sugababes:

"It is a rather miserable, undignified end to a band who fell together at school, made their name with a sophisticated pop sound and achieved what they did with a rare class. Pop which is invented in order to be a brand is often unpleasant. But Sugababes made pop whose values and attitudes were strong enough to inadvertently create a brand. Theirs was smart, British, soulful pop, occasionally arty but always melodic, lush and a cut above most of the rest."

I've read elsewhere that there was some discussion over royalties. But I'm also wondering if Keisha was fighting against the direction the group was taking and lost.