Can we stop soft-removing abilities and upgrades from the game by making them so cost inefficient that only a comp stomper would get them?
Bolster is manpower and popcap efficient. If you use Bolster to stick an extra man in each of your four infantry squads, you spend less manpower immediately and lose less manpower on squad upkeep in the long run.
Bolster is essentially a fuel-for-manpower trade. The fuel is the part that balances it: you're trading a manpower advantage for a teching disadvantage.
Right now, that disadvantage is so small that you always tech Bolster. You can build four Sections, tech Bolster, and you'll still have the AEC in time to kill the light vehicle.
If you want Bolster to be a decision than a no-brainer, then it needs to cost more. If you raise the manpower you defeat the point, so you need to raise the fuel.