I agree that this version is better, still..
Dude, the other guy has translated it just because there were a couple of chapters available and without translation during more than a month.
Even the one-man-translator said he did it without any malicious intent and many people were thankful.
I agree that maybe he could join and help other scanlators or groups, but if you take a look on his profile, these chapters were the first he has posted so far. So I don’t think he meant to just be “faster” and publish “as quick as possible” as mentioned, he waited for a while and did it.
I consider that the competitive POV on this matter doesn’t fit what the other scanlator did. He even said he didn’t mean any harm and that he would stop scanlating it, if it was not appropriated.
Btw, I would like to thank the work of the scanlator group that has been awesomely good, even with another “version” available.