What is "Excellent Cruft"?
Wikipedia defines "Cruft" thusly:
Cruft is jargon for anything that is left over, redundant and getting in the way. It is used particularly for superseded and unused technical and electronic hardware and useless, superfluous or dysfunctional elements in computer software.
Julie went at Dan's old code with a machete to clear out the tangled jungle of cruft the unlamented hacker left when he was canned.
"Excellent cruft", then, would be, well, either the best of a weak lot or a pure oxymoron.
You can decide.