>>19453564They made FRLG because you couldn't get those Gen 1 Pokemon any other way. By Emerald most of the Gen 2 Pokemon were also available.
>>implying that's a legitimate excuse when you can have a pokemon go from gen3 all the way to gen6The data structure hasn't changed much since RSE. Those were the games that modernized the EV/IV systems, added abilities, natures, personality values, etc. For example, In Gen 2 Pokemon could only have 0-15 IVs and had "stat experience", which was kind of like EVs but went up to 65,535 instead of 252.
It's not possible to accurately translate a Gen 2 Pokemon to Gen 3 without some data getting modified.