Have you received training as an enlisted person? Because PPTs are but one - of numerous - ways, to include drills, exercises, and other physical doing.
Yes, 12.5 years enlisted. I've sat through more dumb PPT's that are a reaction to an incident than I care to remember. With Covid, the model seems to have moved to doing an online course which is a bunch of slides and some multiple choice questions.
I'm pretty sure that GP just did. Their post was a multi-pronged dig at their time serving - the first being that their training was (mostly?) ppt based, and secondly that sailors are overworked.