His description of the Sangean PR-D5 is a bit misleading, because of the way he worded it.
The PR-D5 is not restricted to 10 khz tuning. It has a 9 khz / 10 khz 'switch' (done through a key sequence).
I think he meant that the PR-D5 doesn't fine tune in 1 khz increments -- which it doesn't. That may be a deal breaker to a lot of guys.
One thing that gets me about these 'shootouts' is that in any case it's always subjective. And like a lot of Panasonic RF-2200 owners, he has an almost maniacal attachment to the radio, which was an OK radio in the mid-1970's, but the build quality basically sucks -- mainly the switches.
It is a good info source for MW radios, though. His collection is also pretty impressive.