i think you are wrong. that's just what multiman does, it asks to change the param.sfo to 3.55 because it's written for 3.55 cfw. idk how dex works out on higher fw's, but i don't think it looks at the fw or else spoofers would really mess with multiman.
i could be wrong, but that is how i think multiman works.
now, as time goes on, i do agree this looks less and less legit. i hope it is real though, but just a poorly done video. with the lv2 exploit, maybe they figured something out and that would be great.
Never there but always going back