Of course it is their responsibility.
That is true of everybody who has ever or will ever land with the gear up.
Everybody who transmits on the wrong frequency.
Everybody who lands at the wrong airfield, wrong runway or wrong ship.
It has all happened many times and it will happen many times more.
Thankfully, sometimes all that results is a funny video involving toilets.
Sometimes people get injured or die.
Even the best pilots with the best airmanship have a bad day, and unless you have never ever made a mistake with potentially disastrous consequences, then you should really get off your high horse on Pprune about it.
Personally I have never blown over a toilet, but I have had a few moments in my career where I have dodged a bullet more by luck than judgement.
Can you say this has not been the case with your flying?