Unfortunately stories like this have become the norm. Either people just aren't trained like they used to, or they just don't care, or both. Just recently learned of this phenomenon called "quiet quitting", where workers do just the bare minimum to get by. No above and beyond, doing stuff that you see needs to be done, double-checking to make sure your job is done right. Making the company look good and be profitable is out, only doing what I have to to get paid and then I bail. They feel that the bosses make all this money, and they as workers don't get peanuts. So why should they put in extra effort?
It's disgusting. They don't look past the end of their noses, failing to realize if the company loses profitability then it could fail and they'd all be out of a job. No employee loyalty. So shortsighted. But it's the path we've been on for awhile, and I doubt we'll be able to change it now.