Welll, my mom has been going to St. Therese for years, and that's the story she's been getting from the chapel coordinator, that the priests and nuns and seminarians of SSPV East (aka CSPV) refuse to fly because of the scanners, and this has been corroborated by the fact that when Bishop Santay did do confirmations a couple years ago, he drove around the country. Not sure if that's changed recently.
If that is what the coordinator at St. Therese thinks, he or she is misinformed.
He is correct about the nuns not flying, but even they have started to fly again recently.
I can't say one way or the other if Bishop Santay drove to a Confirmation in a specific instance or what the reason would've been for doing so, but he visits my chapel once in a while and always flys in. Neither he nor the other Priests of the CSPV had a "no fly" policy, and even if they did they contradicted it every time they have come to say Mass at my chapel.
Thinking back I can think 0 times I have ever known the Priests to have driven to my chapel from Round Top, and we have had the CSPV Priest's servicing our chapel continuously for about 15 years.