They literally said that Roundup is bad because of the OTHER chemicals that it contains in addition to Glyphosate which is not dangerous. Then it makes total sense to use pure Glyphosate instead of Roundup.
Of course you can claim that they are wrong about their claim. But that is another point.
> Unspecified Glyphosate product isn't better because it's not Roundup. If some ingredient in Roundup is dangerous, let's drop the Glyphosate conversation and look for herbicides without that other mystery chemical.