I work at a company that does something similar; it can be annoying to deal with these fake phishing emails from our own IT, but a 10-15 minute training session if you fail is a lot less disruptive than what can happen if you clicked the real link instead.
I consider myself a bit more tech-savvy than average, but I’ve almost fallen for a couple of these fake phishing emails. It helps me to keep up with what the latest versions of these attacks look like (and keeps me on my toes too…)
There’s an excellent podcast called Sad Oligarch with a 3-part series on Dan Rapoport, I can’t recommend it highly enough. Apple podcast link here for those who are as lazy as I am