I had a Toro that lasted 27 years.
My next one almost as long.
The mowers ( Toro, etc.) you buy at Lowes & HD are different than the ones you buy at a lawn mower store.
This wouldn't surprise me at all.
As someone who was a cash register dealer for many years,and sold Sharp electronic registers,there was a line of registers available to guys like me,and a line of registers sold by places like Staples,etc.The stuff sold through Staples was considered "throw aways".Not repairable,with no real parts source..