People should always wear what they want when they ride. If people want to wear the latest updated team kit, of their favorite team, then so be it. If they want to wear plain colored kits, so be it. Retro..whatever, wear what you want. Never understood this debate. No one is going to mistake you for a pro rider, and if you are a fan of a team wear what you want.
Riding a bike should be about fun. If people have fun wearing team kits, then hooray for them.
I have recently added a HTC-Columbia kit to my massive team kit wardrobe. I ride a Scott, I have the new HTC EVO...only had one step left lol. Will I wear it often, nope, but I ride so much, I need lots of bibs and jerseys.
This year alone I have bought Sky, HTC, a new Rock kit, 2 local bike shop kits, and some solid color stuff.
Nothing wrong with wear solid color stuff, or team kits...just get out there and ride!!