Peaking DESPITE behavior.
That's not true, US cases peaked around Christmas and again around New Years in direct correlation to behavior changes of increased contacts and travel. It was predicted accurately beforehand ON THIS FORUM. There have also been more restrictions in places like California which had a bad outbreak and NYC (despite the fact you refuse to admit they work)
Contrary to your fantasy, Covid didn't go away then and won't go away now until there is a miracle, a vaccine, or behavioral changes.
Even Manaus Brazil, which has known 76% immunity, something nowhere in the USA has, is now having it's worse outbreak.
The Abarbanel has natural explanations for the makkos too
Once it happens we can always find a million natural reasons in hindsight
The Ran in Drashos Haran says there was no conclusive evidence of the existence of Hashem until Krias Hayam, which is why it says then ויאמינו בה׳ ובמשה עבדו.
The virus may or may not be miraculous but there is nothing about it so far that is difficult to understand naturally despite peoples grasp at every fiction in attempt to discredit the prevailing understanding of it.