To the OP. It does indeed appear that in the past, god was willing to talk to anyone--literally.
And often. All the time, it seems.
More: Not only did god speak to just anyone, there were Vast and Amazing and Stupendous even Feats Of Godly Doings too.
From massively large pillars of fire, to talking-burning shrubbery, to floods, ocean-partings, sticks-into-snakes, trumpet-born wall smashings, to dead coming back to life, to the literal sun being halted in the sky so that God's Warriars could complete the Godly Slaughter of yet another tribe who's "crime" was being in the way!
It. Was. Glorious! Epic! Amazing! Incredible! Un-believeable!
Fast-forward to the invention of modern measuring tools.... like cameras, and micrometers, and tape recorders and modern skeptical thinking...
... Suddenly! God quit speaking to ordinary folk. God quit doing Fantastic Things. God quit Striking People Dead Right There With Lightning.
None of that.
Was it the Lightning Rods? Was it the Questions asking for proof of these Godly Claims? Was it the 100% lack of photographic or phonographic evidence?
Was it the ability to calculate how *much* water you'd actually need, to flood the entire planet? (this required a whole lot of previously unknown measurements: The size of the planet, the height of all the mountains, the maths to calculate the volume of partial spheres, and so on...)
The more Humans learned how to actually MEASURE STUFF? The more "silent" god's Stupendous! Amazing! Miraculous! seem to become.
Now, if God was All Of That? You'd think God would welcome this New Understanding... and become even MORE Stupendous than before! Utilizing the new Radio Waves, God could have literally spoken to every single adult on the planet at once!
Nope. Didn't happen. The more humans put the ruler to the world around themselves?
The more SILENT this ... "God" ... became.
How about THAT?
It seems that "god" is afraid of a little measurement! Oops!