The Gemara says that after Nevua they still used the Bas Kol. The Gemara in Eiruvin says that Rebbe Gamliel saw with Ruach Hakodesh.
I just don’t get how someone earns such titles as Kofer, Gaava etc. for trying to see the Din. Studying Hashem’s ways is Limud. There are Machlokes in these matters as in other matters and Eilu Va’eilu applies here too, to those who learned the appropriate Sugyos well, Lishmo.
When a Mechutzef gets punished by a principle we would say, wow, look how bad it is to act that way. We won’t say, y’never know why the princple did that, maybe the boy did something else. If someone sees it so clearly I wouldn’t call him names.