Tridente used to be a very scary gunboat years ago. After the upscale, it never got the proper stats to reflect the new model. We're finally giving it some love to make it decent again.
Seeing that the IMG Gunboat was not mentioned (and likely not touched), I have serious doubt that it will be any good at fighting the main opponent. The multi-gunner OC Gunship is already beating fat, massive easy-to-hit IMG GBs routinely, and now the OC one gets buffed a lot.
I think depending on the present situation, it's better to give some advantages to Outcasts:
1) Your advantage over Outcasts are the numbers of pilots. (You are much more active and organized).
2) I can hardly remember any massive activity from Outcasts side in Taus/Kusari (in Piracy). So this buff might push some people to take Outcast ships and get back to piracy/fighting again.
3) Now look at this from a different angle: which would you prefer the Ascos (without nerf) raiding Tau-23 or the new buffed Tridentes?