Don Magee said
That sounds dangerous from a groin perspective. I've had enough accidents with my legs crossing over each other.
Thanks Don. Oddly, I forgot why we were trained not to cross our legs. I agree with other posters that we should try to learn soft and internal ukemi. However, falling from a very well done shoulder throw, where nage puts you high enough to grip your arm like a sword, and guides you with speed and force to the floor - the traditional break fall is the safest answer.