Yeah, I'm thinking we could handwave all the precautions and disposal of it, because IDK what magic/runes/whatever we should BS to say it's under containment, but there's also no way the team would take this lightly since they've been carefully handling red lyrium for how long now? So a little bit of jazz hands to explain away the darkspawn and then killing it and burning the body ASAP seems the best thing to do.