Dangerous? No. Stupid? IMO, yes. Why not just put a rice cooker under there? I still don't understand this undying urge to slather CF patterns on everything. Honestly, we should go back to the chrome age.
I've seen some heavily CF'd engine bays and I think it just looks terrible no matter what the car is.
2015 F34 328iX GT Glacier Silver
2011 E90 M3 Monte Carlo Blue
2004 E46 M3 Imola Red