Sure, but one of the benchmarks of a good cryptographic algorithm is to reduce the amount of meta information you can get from a random sampling. Most of the timing attacks are looking for traffic activity to pattern match ultimate source and receiver. If the encrypted tunnel is always exactly 10mbps of cryptographic traffic, then it would be much harder to identify

Imagine a future where you and your VPN connection maintain 10mbps of constant, uniform traffic at all times. That solves the problem too, if the noise is aways high, you can’t see the signal

If a game is illegal in a region, you don’t want to sell it in that region.

That’s the only good reason I can think of.