And what would stop someone from tainting the food after the inspection? I prefer inspection to be used to enforce the laws, and that starts with the farms. Animals raised in grossly inhumane conditions need to be stopped, and those responsible need to be punished to the fullest extent of the law (and perhaps forced, as part of their sentence, to have totally vegan diets). That is where most of these problems start. Eliminate the animal cruelty instead of criminalizing those who document it and blab it across the Internet or taking down the whole Internet/censoring everything. That would solve half the problem of food poisoning, if not more.
The other half is usually a result of something that happens after the inspection. How often do I find cans with bulges or big dents in them, because some idiot insists on stocking them anyways (and yes, I pull such product, shortage or none). I have also seen bags of dry goods with holes in them, through which anything (from dirt to food poisoning or cyanide) could get into the food. Again, if I see it, I pull it shortage or none. These idiots that continually stock such items need to get fired. The rule is, if I wouldn't buy it, I don't stock it either. (Obviously, with shortages, I am a bit more liberal in stocking boxes that are a bit beat up or cans with little dents, so long as the integrity of the package is still intact.)
Then, what happens once the customer buys a product and carelessly handles it. And no, I do not mean for coronavirus. How many times someone will improperly clean items after using them for raw meat and before using them for prepared food. No inspector is going to prevent food poisoning that results from this--a bit of soap and water might, though.