they certainly do. I'm not the NCAA, CSC, nor advocating for or against their salary. I don't think anyone has said anything about working hard, same as I'd say the guy laying blacktop is working pretty damn hard. Working hard, unfortunately, isn't setting their salary in the current landscape. They're getting that revenue share from the school and I suppose that that can be deemed what they're getting for any of the things you mention.
However the outside NIL money is different and it's nothing to do with attending practice, it's whether or not what they're doing is a "valid business purpose" and absolutely not supposed to be pay for the play on the field, practice they do, or weights they lift but rather for them doing work outside of football/sport.
As per the article
The CSC was launched last July to police how college athletes are paid. Athletes can make money in two ways: through direct payments from their school and via third-party endorsement deals. Both have limits. Each school can spend a little more than $20 million per year in direct payments to athletes. Third-party deals must be for a "valid business purpose," such as endorsing a product, rather than a pay-for-play arrangement.
And my opinion
No one is arguing (in any good faith) they don't deserve part of the revenue share. If anything, it perhaps stands to reason they should be considered for an even bigger part of the pie there. This is a discussion regarding 3rd party deals and NIL and schools gaming the system. I'm all for making them employees of the schools and forcing the schools to pay them and support them long-term with employee protections and contracts.