If capital spam stays, then 1) PPT should be raised across the board and 2) battlemap size should be raised (to more than 500) so that we can deploy more than two to five capitals. If fleets are meant to bring a bunch of capitals, I want to deploy them all, not fight a small trickle of ships like a Star Control SuperMelee (and retreat my ships due to not enough PPT) due to too small map size.
PPTs were calibrated during the 0.6.x days, when the biggest fleet was Hegemony System Defense Fleet, or the equivalent of a modern 200k named bounty.
It makes sense that the larger the fleet, the more capital ships it should contain. You could argue that it is pretty strange that large expedition fleets contain a large contingent of combat non-capitals. What value are the smaller ships providing other than being the first to be destroyed when facing up against your fleet and orbital station?
They should bring more Prometheus, and possibly Atlas too, if they go full capital spam. I notice they may have one Prometheus, probably enough for a one-way trip for my colonies beyond the core. I find it hard to bring all of the capitals they bring for a similar long-distance trip without bringing at least two Prometheus, taking Efficiency Overhaul, and maybe Navigation. Pirates are understandable since they "raid", but others just break or disrupt stuff then leave.
The war fleets they send at you are bigger than their system patrols.