better to discontinue these coins than force the redesign of every coin changer in the country.
Remember, since the courts have decided that anyone qualifies for public office, including the insane, the pathologically criminal, the stupid and the feebleminded (check out Congress), the odds of expecting thoughtful rational and beneficial decisions is pretty much a fond memory.
With that attitude advancements would never be made. Coin changers need replacing often enough already so while it might cause plenty of complaining it wouldn’t be all that disruptive. Many won’t even take a penny.