Briggs knows that most OPE engines get maybe 200 hours before something happens. The OPE repairman has to charge at least 50 an hour plus parts to make any sort of hourly wage after covering the cost of the shop and inventory. just a carburetor replacement costs more than the mower is worth. Heck most folks never even sharpen the blade. So they buy a new one. 200 hours is within the life time of syn oil with additions. When you see "consumer grade" that is what it means.
There really is little market for mowers like my old lawnboy anymore. It probably 3000 hours on it, after 40+ years. 5 blades, 2 sets new wheels, new axel bolts, It is going to need parts that are no longer available at some point. But at 62 years old for me now, I am probably only looking at buying one more mower. it owes me nothing.
Rod