LU
A few disagreements
first of al not all agree on your narrow definition of hashgacha and the need for hishtadlus. that is certianly the most popular view around today but it isnt the only view, and you should be careful throwing terms like “kefira” around isnt helpful. The Rambam lists 13 ikurim (not that those are universally held either) this idea isnt one of them.
second
“but that is the conclusion inherent in his words,”
Im not sure which poster you refer to, but I do not see how you reached that conclusion in any of the above posts.
The reality is as LC writes.
There have been problems that were ignored for years until bloggers wrote about it publicly and openly. Rabbi Zweibel (certainly no fan of blogs) admitted this in an interview with AMi (or Mishpacha) a few eyars back
third
“so if someone does hishtadlus that is against Halacha,”
The arguments is whether it is against halacha. Arguably publicizing a problem that will save lives isnt against halacha.