One point that needs to be made is that playing a football game has been compared to getting into a car wreck. Yes, many injuries suffered in a car wreck can be suffered in other ways, but that doesn't make a car wreck any less dangerous. If you consider it in that context, then one can also understand why getting hit by a truck can do more damage than being hit by a compact.
That aside, I don't think we're trying to debate the long term consequences (sitting is a rather dangerous activity in terms of long term harm), but rather the competitive disadvantage that physical matchups can pose. I mean, Alabama lost SDH last year in the Florida game. What good did that game do Alabama? It gave them a disadvantage, and that's just the simple truth of the matter. So, when people call for more SEC games, more tough games, etc... they should probably consider the implications a bit more.
I remember not to long ago when we were complaining about playing FCS teams or "cupcakes" in non-conference games because it was too much risk to lose players to injuries in games "like that".
Not I.
The big problem is we have a legislative body that has their head in lalaland (the NCAA) and they don't really accept that the game is a good deal different financially and competitively for 60 or so teams than everyone else. Their collegiate sense of fairness hinders a practical sense of fairness. The other problem is that we have a profit-driven body that has de facto control over the sport that tries to push the sport in directions that benefit their bottomline but doesn't really work well within the structure defined by NCAA pinheads.
I wanted to come back to this because I think you did illustrate the problems being faced. What kind of sense did it make to keep adding games while giving them less players? That's nuts, but what did they do? They added conference championship games, they added a regular season game, and they added a playoff game (two of those all but guaranteed to be tough games) and keep in mind that in 1991 you could have 95 scholarship players! So you add 3 games and drop 10 players, that is an absurd proposition that obviously does the most harm to teams that play those additional games and face the additional attrition.
I do think there's been some slow moves in the right direction. I remember a couple of years ago, some coach was complaining that they'd been "trying to even the playing field for years" and that now some changes were going in the other direction. Good! The extra on-field coach is an improvement, the four game freshman rule would help (avoid scenarios like choosing between playing a hurt QB or taking off a redshirt), and I also argued in favor of the stipends. It didn't seem fair to keep asking more of these guys without doing more in return.
But, in a perfect world I think they'd break through more barriers you alluded to. Personally, I'd like to see one less regular season game. I was not a fan of the extra playoff game, I still don't see what good it does, I think it's just an extra obstacle. But, playoff, so not going away... so, I don't care if it's the FCS game most teams play that come off the schedule, but I honestly think they are playing too many games now (and the idea that playing at a school like Alabama can mean 3 extra games every year, basically a full extra season of tough competition over a college career is kind of worrisome). Also, they do need to relax the scholarship limits some. Even if it's just an extra scholarship per year, and 5 more total, it is absolutely absurd they could add 3 games and remove ten scholarships.