I despise Powerpoint in an engineering setting.
Its fine for showing images with a small amount of overlaid text (“the widget causes interference here”). Its fine for summarizing key points of a report, so long as you reference the report. Its fine for acting as a support aid for a training session.
But using the tool to slow a slideshow of 20 pictures of something in a row, or to be the report resulting in a 500 slide presentation, or to compress all of the training text onto slides is an atrocious use of the tool.