Since I updated to the 1.3/1.4 patches (I haven't tested it yet with 1.4/1.5) RAM2Sav creates the ramsav.bin file but PKHeX can't read it (I'm still on 9.2.0-20 sysnand, I downloaded the patches through rxTools' emuNand and fortunately they are recognized by the sysNand), that's not a big problem because I can just use a second SD card with only the RAM2Sav files on it (so no patches), edit what I want, inject the edited ramsav, save and then put the primary SD card back in the 3DS.
So the reports aren't false, there are mixed results