Except that the two solutions are not in any way equal. The difference is that better player development is not a zero sum game, and doesn’t exact a cost at other position groups. Piling on extra recruits at OL does. It means you have fewer players to cover other positions. If you “fix” the OL that way, then you have to concede by the same argument that you have dimished your prospects at at least one other position group, and in the end may not have made the team any better overall.