His idea on TMs is great. His idea on the percentages of recieving them is NOT. He wants to make TMs just as rare as getting a lucky egg from Chansey, essentially.
If Darkshade puts the effort into putting percentages higher of getting stronger TMs from less common Pokemon, than it would be for more common Pokemon so be it. If he does not add the percentages of each TM and the percentage customized differently for each Pokemon and it's well calculated, than I will not support his idea. Not to mention his idea involves grinding even MORE wild Pokemon, which we already have a large amount of in Pokemmo.