I have to disagree with your assement of Carriers and Flak. 4 Sovas at lvl 4 or better is a VERY nasty taskforce to see hop into your system. Why? because even with just lvl 2 embargo, the stack no longer works according to notes i read, cripples the economy on the target planet and gives a boost to your own production. Meanwhile, the 4 fighter squads and 8 bomber squads are running around blowing strategic items such as labs, mines, trade ports, etc. They are also good for softening up planetary defenses right before your main fleet hits. As for the Flak Frigates: standard convention is for every 1 flak frigate, you can target 3 strike craft squadrons. So if you have 4 Flak frigates guarding your carriers, you can just run around the whole gravity well, while rebuilding your srike craft if they are destroyed and make a serious nuisance of yourself to the other player. You just have to remember that the 19 dmg is spread through 4 guns. So roughly each gun does 4-5 dmg. You have to be smart on how you place your flak frigates in order to have the maximum amount of guns firing. I find that if you rush 10 or more flak frigates into a light fleet of LRMS and light frigates, you can take out quite a few with little damage to your self because every frigate is blasting away at multiple targets with all guns.
Jotan he is talking about carrier cruisers, not carrier capital ships...
Also he never said that flak had to be made stronger vs carriers, he said flak should be made a little LESS powerful vs carriers and a little MORE powerful vs long range frigs. If anything your discussion of flak backs up his argument.
What is more, how you get that flak are a good counter against "light frigates" is beyond me. Flak in one-point-oh-four do 25% damage against medium armor (which is what light frigates have) while light frigates do 125% damage against heavy armor (which is what flak has).
Finally, while it was true in one-point-oh-three that flak were a very nice counter against long range frigs, this is just not the case in one-point-oh-four. I mean, they do okay vs long range frigs, but currently both flak and long range frigs do 75% damage against eachother's armor types (heavy and light respectively). This puts them on more equal ground, with the edge going to long range frigs due to the usually higher dps.