You asked a question, I answered it (before you even asked it also, but... whatever man). As has been made clear here, Bateman can go to another school without missing the playoff game! The only question, which has not yet been answered is if he accommodates that or not. Yes, it would limit his choices, but it does not absolve him of responsibilities. There's nothing mandating he has to transfer now or miss playing football next year!
I know we now live in an era in which people are not really responsible for themselves or their actions. I mean he's 22 right? He's not even expected to provide his own healthcare until 5 more years right? Well, the choice he has, which yes does fall on coaches as well is if he will fulfill his responsibility. I did however highlight the difference and I will, since you were so dismissive, belabor that point.
Now, Bateman is not just the backup, he is the holder. The previous holder is gone. The next logical backup and holder might not be physically capable of doing the job. This is why we are discussing a wide receiver as quarterback. So, it isn't some idle discussion of who sits on a bench. It's a relevant discussion of who holds the kicks (AG unfortunately is easily affected, he struggled at first with the new holder) and who plays if Hurts is injured. This does not compare to a situation in which there is an immediately available option to do what he does.
How does that compare to real life? Some people feel an obligation to fulfill their responsibilities. I think we've all known people, young and old who did not let their team down, did not let their employer down. For example, I once played a basketball game the day of my mother's funeral! I wasn't 22, I was 14, but my team needed me and I went out there and played. Now, would I have damaged the hopes, dreams, and hard work of many people by failing to show up? Not really, but I would have let my team down. There are plenty of people who wait to leave an employer until they are replaced or their services are not needed. For instance my wife's current job came after she was working for a contractor. She stayed with that contractor until the job was done, literally until she was unemployed, because she didn't want to let them down. She was unemployed for one day, as the people she had been working with were glad to hire someone of her character and work ethic. It is entirely possible to make choices that show good character, and it's possible to make choices that show bad character.
How I view Bateman will be through that prism.