Spare no expense!

yes but people don't live on set (at least i don't think). and even so resupplies need to be cleaned too (though the risk for contamination via surfaces is lower than by breathing in saliva and snot particles).

hotels, cabins, caravans, be a lot cheaper

Maybe. I’d clean everything just to be sure tho. Who knows what the 5 million are for not just hand sanitizer