I think its not about v10 or something else , i think its about a generally thrilling sound and spectacle infront of the tv .
You can make an atmo inline4 a brutal screamer like we see on superbikes with open exhausts .
To be honest : the v6 turbo,s of the 80,s were also anything else than vacuum cleaners .
Generally the engine in an f1 car was always the heart and soul of the car and this sport .
The current v6 are a bit boring since they are highly regulated and the goal is to be as efficient as possible . They are just a hidden part of the car and expected to do their job , as efficient and green as possible .