Personally I think there should be a forced interior view, as long as there's also a better lobby filter. In fact, there should just be a better lobby filter anyway; I hate it when you find a lobby that has 450-550pp road car restrictions, yet you can put racing soft tyres on the cars.
Where's the fun in that? Not that I'm wishing to start an anti-racing tyres argument, just saying that it seems really odd to have low powered cars on tyres that'll never break traction, that's all, not to mention that it takes away a lot of the skill so it turns into a competition of who tuned their car properly and who didn't... Admittedly I'm always the one who didn't tune their car properly, but even so!
Anyway, I digress, if the player can choose whether or not they want to have a restricted view then I say do it, the more custom settings, the better, as long as other players can see all the lobby settings before they enter and filter out those they know they won't want to join. Since the update I've been racing in cockpit view exclusively, and I think I enjoy it a lot more than the bumper cam. Before the update I couldn't be bothered to remember to switch between the two when I was getting in a premium after a race in a standard, so just never bothered. Oh and another car with pretty poor visibility is the High Performance G37. The roll cage obscures the rear view mirror and the wing obscures the rear view camera... I had to rely on looking right to see if there was anything in my wing mirror, which is tricky when you're trying to race, on hard sports tyres, in the rain.