> wouldn't this lead to a belief that pasteurization is necessary?
NO, it should lead to a belief that food like milk or vegetable juice or fruit juice should be eaten fresh, or if that is impossible, then should be avoided whenever possible.
Yes, pasteurization is necessary ONLY if you want to eat food (milk or juice) that left cow (or juicer) several days ago.
GET YOUR OWN JUICER, and you will avoid suicide with food!
OR, if you have teeth, and you have no money for juicer, use your teeth as juicer, chew your fruit and chew your veggies!