Mosherose said,
“Except that the fact that learning protects is not a nes – its perfectly natural according to the world that Hashem created.”
“Obviously we werent learning enough.”
Even if your premise is correct,
if the learning of R Elchonon Wasserman and all of the hundreds of thousands of talmidie chachomim and tzadikim who have been killed over the years wasnt enough to protect them, we would have to be extremeley arrogant to depend that our or anybody alive today’s learning to protect us by itself.