[sinak]

I think you're misreading Shannon's Law. It's not that the higher the frequency the greater the max bandwidth. It's the higher the bandwidth the more data you can put through.

[OnACoffeeBreak]

I am agreeing with you and providing more info:

https://en.wikipedia.org/wiki/Shannon%E2%80%93Hartley_theore...

Maximum channel capacity depends on signal bandwidth and SNR.