SCOTUS is ALWAYS considering tearing up legal precedents. That's absolutely nothing new. Precedents rise and fall all the time.
And it's right for that to happen as errors of the past are fixed.
In this case, Humphrey’s Executor has been chipped away at for years. These stories about it being so old miss that it's been flailing and revised over that time. It's not the solid foundation that some are portraying it as.