@Talh
because it's different translator, and it's obvious that he translating not for those who "want to read a manga version", but for those who "want to know what will happen after, but damn 2nd season still not released"
I understand your frustration, but beggars can't be choosers, and i understand translator position here even more. It's not really a first time, when people start translating for people "earning for the plot" from the end of anime.
With your logic we can also argue that he as a new translator should translate from the very first chapter, because all the others chapters aren't his, will probably be in different style etc
If he starting not from the start anyway, he could as well start from anime plot end.
Anyway, there are reason, and if you ask me, i would prefer exactly that option - start from the moment when anime ended. Because i don't really care about anime/manga differences, i just want to know what's going to be next. If i wouldn't notice high number of the chapter, i wouldn't even be here knowing that manga linger somewhere that i already watched and don't care about.