I never thought about the repercussions of putting wine under vacuum but you’re right! Pressure and the boiling point of a liquid is directly proportional. The lower the pressure, the lower the boiling point. The opposite is true as well and that’s why your cooling system in your car is under pressure…to allow the coolant to boil at a higher temp so your engine can run at 240 degrees F. So, when you take your radiator cap off and the pressure is rapidly reduced, the coolant instantly boils and erupts.
An interesting fact…Lewis and Clark used this physics law to determine their altitude as they explored new places. They would boil a pot of water and measure the temperature of the water as it boiled. They had a chart to tell them how high they were based on the temperature of the boiling water because as you go up, the pressure is less and water boils at a lower temperature. That’s also why you have to cook your Top Ramen longer at higher elevations.