It isn't even that complicated really, I was just watching a show about people doing really stupid, pointless car builds that cost hundreds of thousands. In most of these cases these are cars they will never seen a return in and they're often barely drive-able. So billionaires don't have a monopoly on doing dumb things with money.
Toward that end, the 47 million dollar golf practice facility is hardly an isolated occurrence. Most people will never even lay eyes on it, on a scale of reasonable NIL to a 10 million dollar quarterback, that surpasses even the 10 million dollar quarterback because at least the football team earns some money.
They just need to be clever. If some rich booster wants some dumb facility to be built, sure, Alabama's athletic department has 200 million a year to spend, they can do that. But they should get some football NIL money from them so the program which actually earns revenue to pay for all that other junk can sustain itself. Likewise, there are quite a few people that can donate 6 figures a year, and if you engage with them properly and get them involved in the process in a sensible way you can probably figure some things out.
You just can't be dumb in how you go about it (not saying they are mind you).
Anyway, specifically to the topic of the portal one thing I was wondering about is if Alabama is sitting on some roster spots/scholarships on purpose just to see what things look like in the spring. Obviously with no new portal opening they're not going to get any more high ranked portal recruits, but they could possibly add depth at some areas of need that present themself by going after a few players still stuck in limbo.