I'll let you know you were in good company. At Williams (pinball/video game company, later became Midway) that exact same hack was used in almost every game that used the 6809. We definitely used it in all the dot-matrix pinball machines to blit large pieces of data in RAM.
There's another documentary called Tilt: The Battle to Save Pinball by Greg Maletec that describes what we were going through on the pinball side near the end. It's streamable on a few services.
The stories themselves? Way too many to relate. But it was certainly like the doc. A cutthroat company where anything could happen. But probably the most talented and creative group of engineers I've ever worked with.