Do System Points Ever Increase?

On these notes, it feels wrong to me that everything costs 2 system points. We essentially have half as many of them as the game says we should.

Then also, I get that a 1x1 ship shouldn't be able to pack 8 turrets, but just a single one is rather disappointing. It is important to note that System Points are entirely about combat power. Even the Scanner is best used for scouting airlocks for boarding parties. I accept the case that combat facilities should be spread out among the sector map, but I wish I could make a hyper-efficient small combat-optimized escort ship.