You make sense, of course, but I don't think feds or the ISU base their decisionmaking on common sense.
McBeath/Parkman are the more logical choice, based on their 2025 John Nicks and US Nats results. Chan/Howe, while mature, experienced, and aesthetically skilled, they struggle with jump elements.
Interestingly, if Alisa/ Misha most likely can't make the Olympics, Chan/ Howe would be next in line, with both being U.S. citizens. Thus, if McBeath/ Parkman competed and won a spot, it would likely be contested for at U.S. Nats by Shin/ Nagy vs Val & Max. Even if Shin/ Nagy go to Beijing and win a third spot, they still need to prove throughout the remaining season and at Nats that they deserve to be given that third spot (albeit should they win the spot, it's probably going to be theirs).