Historically CAM has referred to the process of taking a CAD design and creating g-code for a CNC machine to run. Depending on your definitions, you could say Glowforge has an integrated CAM system (in that it generates its own toolpaths) or that it doesn’t use CAM at all (as there’s no standalone G-code generation stage).
And yes, the whole point is that you can focus on what you love. For all of human history, if a leatherworker wanted to build something in wood, or a mechanical engineer wanted to turn their design into a papercut, or a clothing designer wanted to create a multicolored sign, they had to start from zero - thousands of dollars of tools, years of practice, per material, to work in a different medium. With Glowforge, you can go directly from creative inspiration to a printed product in any supported material. To be sure, you can add tons of value by knowing how to sew, or finish leather, or polish wood - but equipped with either the catalog or design software (Adobe Illustrator, CAD) - just about anyone can make an infinite number of incredible things in dozens of materials. No engineering required. It’s easier to use than facebook. (To be fair, I regularly fail at using facebook, so maybe that’s a bad comparison).
OK, I’m sounding like our promotional video. I’ll stop now.