Jay Honeck wrote:

The designation of "Class D" provides the veneer of controlled airspace
without any real substance, and lulls the unwary into a false sense of
security.

The key word here is "unwary". That should never be applicable to a pilot.
That is, no pilot flying should be capable of assuming separation in D
airspace.

So there is no "veneer". We all know from our training: class D is
"unseparated" (a reasonable term, I think {8^) airspace.

- Andrew