Despite the impressive looking references, the blog was pretty sophomoric. For example comparison of signal path loss between 72 MHz and 2.4 GHz is made as if the signaling design were the same. No consideration given to the gain due to SS, which pretty much nullifies everything else.
You don't need to be involved in the RF comms industry to spot bogus facts cited. An example is the discussion regarding latency where he states "A seven millisecond latency or a fourteen millisecond latency claim is irrelevant since the human being, the RC pilot, has a painfully slow 200 millisecond latency and can not differentiate between seven or fourteen milliseconds." Anybody that has been to drag race knows that's bunk. Even a lapse of 7-14 ms in responding to the green light is only a 'fair' performance. A 200 ms lag will earn you a loss to a hole shot every time down the track.