by the lore - the sole reason for the capital ships of the core is:
- dabadoru is but a depot, not a fully fletched station - capital ships are their home in the edgeworlds
- they hunt nomads and punish those that are in the way "to" those nomads
so - the cores fleet setup is a necessity.
unless the core expands its area of interest - it should not really get involved in house business ( wars or gallia )
once the core gets involved - houses "might" start to grow a little nervous about an independent power building up a capital warfleet - especially when that warfleet isn t exactly hiding.
its like mercenaries. - having them on your side is good - but if they become equally powerful to yourself, you start feeling itchy about them, cause they could just be payed by the enemy.
all the way - it is not impossible for the core to get involved - but it ll be more complex than "we have a contract - lets head out".