Running backs are about as disposable as kickers nowadays and I think that in the vast majority of cases a college degree will make a guy more money short and long term than a practice squad stint of 1-2 years and no degree. I don't think in his case it's even applicable to talk about getting a second contract when he likely won't even get a first one (on an active roster).
TG will likely get cut and go home with a few thousand bucks for his time. That’s great to say he tried to pursue his dream, but I don’t think he looked hard at the NFL environment nowadays and didn’t accept that just a tiny handful of guys who are way more skilled than he is are even going to have a short career in the bigs, let alone a career they can make a living from.
If he could have gone somewhere another year to get his degree and maybe make a couple hundred grand in NIL and endorsement money, then try pro ball, at least when he got cut he'd be in a solid place in life. A guy like him with a bachelors degree and being a P5 football player shouldn't have a hard time finding a job in the private sector paying $80-90K to start.
All that said I don't know his family's financial situation and I don't know if he graduated or not. Maybe he doesn't have to be concerned with money.