AlephObjects really has unique potential to head towards the “industrial fabrication” market. Their best-in-class 3D printers already demonstrate excellent engineering choices. As well, they have a strong R&D track record. However, since the basic technology is still the same, the training threshold really should not be much higher.
Much integration work has already been done by the community to allow users to control their machine and slice g-code with a variety of engines, all from one interface. Going a bit further, CNC milling/lasing toolpath generators could be included as well. In fact, laser cutters commonly present themselves as USB/network printers, which could be provided by CUPS support. Newbies would be able to slice acrylic routinely as printing photos. Throwing in a RaspberryPi to ship a tightly integrated, maintainable platform, would be well worthwhile.
Most importantly, the community itself is already providing the education. Here, on the forums, many questions have been given detailed answers. At hackerspaces worldwide, the public is getting hands-on traning and encouragement. Catering to what people will do is much better than what people are doing now.
Speaking for myself, Slic3r is nicer. Cura does not handle multi-extrusion situations well at all. Fast visualization of support material is also a crucial feature.