This is the best Pokédex to never exist.
It's Kanto, of course it is, as we know all generations following Kanto are just highly derivative variations of Kanto's perfect model.
However in this instance we've retconned the Pokédex from 151 to a clean 170 by adding the 19 generation 2 evolution family members. This is basically what Fire Red & Leaf Green's Pokédex should had been. In effect its Kanto's Pokédex in generation 3. Or a generation 1.5 or 1½ Pokédex. Its incredibly based and red pilled.