Having said that eating 2 20mg gummies to get high, or a handful of weaker ones that still add up to 20mg to get high, results in the same thing (as you've mentioned). Most people can easily, and happily, eat a handful of gummies.
I guess that law is why our packaging also includes the concentrations for the whole package as well as the per-unit concentrations - to make some of it saleable in the parts of the US with the type of laws your describing.
Federally legal weed is a cash cow for the government and provinces here alike. Sadly it's hard to profit for the producers, so the stock market value is terrible.
Imagine a government that can make it hard to profit off of weed! Pretty shocking on its own. So full legalization is a "damned if you do; damned if you don't" situation for producers.