Whether or not you like them, there's no denying that Coldplay is one of the biggest commercial rock bands of the last decade. They're also loved and appreciated without irony by a large portion of the pop music audience. They've never been particularly political or strived to break artistic boundaries, but they've made the transition from small venue acoustic rock to arena-rock anthems with confidence and ease. Their second album, A Rush of Blood to the Head, definitely did a Radiohead-esk trick of growing and evolving as they grew more confident in their sound and Chris Martin's lyrics became more vague and worldly.
So, while it's immature for Paul Rudd to throw around listening to Coldplay as a sign of lacking manhood, there is a certain level of truth behind that hilarious line from The 40-Year-Old Virgin.