Let me get this straight.
Within your house, where you pay the rent/mortgage, and there is a clear rule of not leaving her things around to be destroyed in the living room, which she has been ignoring up until now, she did exactly that, and a toy she did not purchase to begin with was destroyed, wounding her father, and she's saying he should replace it? (that's the kicker) And you're considering doing her bidding? Um. No.
She's playing you. You're the parent. AGAIN, She left her toy out. It got broken AND hurt her dad's foot, and now she deigns to assert that her father must replace the toy??! And you are trying to bring it to a favorable light for her by explaining???!!! I think not. Do not explain. Here's how she will "get it". She needs to learn there is a consequence for bossing her parents around and talking back as well as leaving the toy out. I doubt she paid for this toy to begin with, correct? She is SO talking back with that crack about her dad.
If I had ever dared say to my dad he should look where he's stepping (shudder) it would have been the last time my toys ever entered that room among other things, and I'm not sure he would have bought any more toys for a very long time. Probably not. And we may have made a run to the local charity with the rest of my toys I didnt' buy. Not sure, again, I would NEVER have said that to my dad at 9. What was the result of this firmness and not letting the kids run the house? We didn't smart off to our parents for one, and we took rules seriously, or lived with consequences if we didn't. You're enabling her 9 year old logic to possibly prevail, and watch out for teen years if that becomes doable for her.
I say, no more new toys she doesn't buy herself (for talking back to mom and dad) and no toys in the living room or they go to the Salvation Army. She gets one warning if you see the toy.