Great info. I did a class liike this a long time agon, sady no nearby range wants this liability anymore.
My instructor threw children's toys, lego bricks, wooden blocks and other things, (much like most households with kids) so when you were sliding side to side to "get off the X" after shooting, you risked giving yourself away or even tripping yourself up and had to compensate. I was all nerves, just like the real thing, it seemed so realistic.
If you have the opportunity, IMO no/lo light training is essential.
My instructor's direction is also, he who moves fisrt is probably dead. then we had to face the conundrum in his scenario of getting across the "house" to get the kids, and of course not shooting them either. I reflected on this training for months afterward. I realized, if you cannot barricade, then getting out of the house and calling the cops is 90% of the time, the best solution.
If you've no experience in this realm, it will totally destroy many misconceptions you have, I promise you that.