You're very lucky Will.
My offside went as a result of hitting a cracker of a pothole at around 70mph on a section of dual carriageway. Steady flowing traffic, so no chance of seeing it or avoiding it. I managed to get full reimbursement of costs from the responsible authority. Replaced by Mazda so that was shock absorber and mount to pay for. Shocking, as nothing wrong with the shock absorber which I have in the back of the garage just in case.
The nearside, which lasted far longer, must have failed over a long period/succession of impacts as it wasn't a single tear/crack.