We set crates up as an absolutely safe haven... a dog's personal space... somewhere to retreat to when they are unsure and uncertain...
It's hardly suprising that she would react when someone tries to physically remove her from it... I know hindsight is a wonderful thing, but it would have been better to lure her out... or even wait a few minutes then call her...
You and your OH would have been stressed that she was missing.... Darcey will just have seen stressed body language, not knowing it was out of concern for her. Also, her adrenelin may have been raised, either by her adventure, or she may have become uncertain about how to get back by the time you found her...
Be aware that adrenelin levels after a confrontation like this can remain raised for several days, so take extra care not to get into a confrontational situation with her.
Another thought... could she be coming into season??