If you get flamed, I'm sure it's by skydivers that think they know about BASE.
You've probably got more BASE jumps than me, but from what I was taught by my mentor and others, you did the right thing. I was always taught that if one toggle goes, drop the other one and land with rear risers.
I'm not sure what would cause a blown toggle, but maybe weak velcro?? Post on Mick's site, you'll probably get some better replies.