It appears that a combination of insurance product liability and UL pig heads will frustrate the CMS in the USA. Speculation is that the router insert for the CMS has the best chance of passing the USA/UL safety tests.
Going back 50+ years, when I bought my first electric hand-held jigsaw, I used the method a European friend and jigsaw expert used. To see the blade as you do on a traditional fixed jig or coping saw, he used his jigsaw underneath the clamped workpiece. For me this method work even better with the Trion PS 300. That is the one with not just the barrel grip, but the all-important "bump" centered over the blade that fits my palm so well.
Of course to me it would be marvelous to mount my Trion under a table. Quite likely if I were using tools as a hobby I would make a fixture to do so.
However, I own a very large shop. I have many well-paid cabinet makers and others working for me. Workers' Comp and liability insurance are an expensive over-head cost of doing business. I cannot allow any fixture in my shop or on a site where I am responsible that is not UL approved for use In the USA and especially California.
A major reason I do not buy less expensive tools is my faith that Festool puts up with the UL frustrations so all that approval protects businessmen like myself in the event of accidents.
My advice to hobby users is similar. Even if they can use a method that is legal, they are not covered by workers' comp. How would they support their family after a serious and preventable tool related accident?
