I read an interesting take on this buying skillpoints thing.
The long-term consequence of it, is that Tech2 becomes even more entrenched in its position as the standard for fitting.
Meta modules, would just get refined for minerals, altering mineral prices.
Ship balancing would be pushed towards using the Tech2 equipment as the default, with no compromises to be made in most ships - e.g. time was, that a Crusader, you had to fit some meta modules, and smaller guns, to get enough CPU and PG to fit things. Now, you don't. You can fit the largest guns and all T2 modules.
while, economically, the increased reliance on T2, is a boost to moon-mineral holding alliances.
It's already the standard for fitting. As you say, the constraining factor is CPU/PG, not the SP of the character involved. The step from properly skilled-out T1 guns to T2 weapons is minimal.