As n0mesorah mentioned, there is a difference between “from Hashem” and “Torah = LAW”
The Torah, the LAW – and, of course, the discussion of how to get to the law, is Yahadus.
I would say, that even reading the story of the Mabul or Yosef and his brothers doesn’t qualify as “Limud haTora”, which is a very specific classification. (as i quoted above…., vshinantam lvanecha vdibarta bam….. “ki im bToras H’ cheftzo uvToraso yeegeh yomam vlalyla” and “vhagisa bo yomam vlayla”)
“Ki al pi hasvarim ha’eleh karati itcha bris v’es Yisrael”, and many other psukim say beferush this concept. The entire Bris is the Torah, nothing else. Furthermore, the other Nevi’im have no right to give us any laws, = meaning they are not Torah AT ALL!
Only that Moshe said there would be a place Hashem would choose to rest His Name and that we should put over us a king from whom Hashem will choose, so we need the Nevi’im for that.
Of course, it’s important, just like Agada and Mussar etc…