I'd say to pull a chute having successfully recovered to controlled flight was crazy!
Maybe not if you have just recovered from an unexplained black out and are not feeling 100% - what if it happened again on short final?....I see what you are saying though and had it been an inadvertent unusual attitude I'd have landed it.
I'd be concerned about flying any aircraft that hasn't been tested in a spin?
Then you should never fly in a twin
It is unlikely a twin would be recoverable in a spin, certainly not from a low height (<6000'). When they flight test these they often have spin chutes fitted which they pull to arrest the spin if it happens, and can then be jettisoned.