“If it’s flash pasteurized, many poskim consider it mevushal, so you can drink it even if poured by a non Jewish.”
You’re original statement was unconditional, implying that every case of mevushal wine is a heter.
Also, I’m not sure it’s a good mashal anyway. Reb Moshe never claimed chalav stam is literally chalav Yisroel, whereas in this case the shittah is that it is 100% mevushal (I thought).