The main reason I do not like this story ,is then you have the problem with the Gemara in Chullin 7a.
Meh. He held it was muttar meikar hadin.
If you still think he wouldn’t have drank cholov stam, so say it was cholov Yisroel but in a cholov stam container, but he wasn’t machzik himself a tzaddik. Either way, it’s a kashya oif a ma’aseh.