Like Dave said: "JLPT vocab lists suck (all of them)." [http://kanjibox.net/ios/blog/archives/2013/11/fixing-jlpt-lists/]
This seems to be true for kanji lists as well. I created some kanji lists based on frequency-of-use according to KANJIDIC2 [http://www.edrdg.org/kanjidic/kanjd2index.html]. When I started adding terms from these lists to my kanji schedule I was surprised to notice that 分 has not been in my schedule yet. I know that there are no official lists for the new JLPT but I think this is a rather common kanji. I was even more surprised to find out that 分 is not included in any level of renshuu's JLPT kanji lists.
So I checked which kanji were in the old JLPT levels according to KANJIDIC2 and compared the list with those in renshuu's lists. The following 19 kanji are not included in any of renshuu's JLPT kanji lists:
分的無可身孝里畑寿丈粧唐慌吾坊矩汀璽醇 (sorted by frequency-of-use)
The last three are not among the 2500 most frequent kanji. I wonder if they really were in the old JLPT.
I checked 4 other sources of JLPT kanji lists that I found on the internet. Two of them have the same lists as renshuu.
The other two agree that 分 is N5. The rest of them (among the 2000 most used kanji) are rated as N3 to N1.
Is there any reason apart from Dave's insight that those kanji (at least the first few) are not included in the JLPT kanji lists? (Most of them are 常用漢字.)
BTW: Just in case anybody is interested in those frequency-of-use lists: I created the lists as private lists and tried to make them public now. That's apparently not possible.
Should be fixed! Please confirm.
Also - I'd be happy to add those to the kanji lists once I get a chance. Similar to what's listed in the blog post you referenced, renshuu as well would benefit from some rebuilt lists, and it'll be one of the goals for this year (also getting grammar quizzing out is the first priority).