Black hole bases are invariably weak to freeze - and even without freeze, looking at this base, I would be able to take all gold + DE. (With 24 minute farming army + dual heroes and 2+ spells)
I might have a bit of trouble without AQ, but even so DE is still guaranteed. Definitely not the best base for DE protection although it is still an interesting base. As a general rule of thumb, though, spawn-hole bases aren't the best idea.

