I really don't see your point at all, barbs used to die from 2 pillages(horsemen from 1) and grabbing something like 3 or 4 science. Now the first brute that got into my territory survived raiding 6 turns and managed to steal over 10 turns worth of science. Not to mention the camps seems to spawn units way faster (or they're just surviving longer I guess).
There is perhaps a problem if they grab 6 turns and 10 turns of science.
But in Immortal I've ever see barbarians survive (so raiding 2 turns) and grabbing more than 1 turn of yelds (sometimes 2) even in the early game.
My point was that in very early game (first 30 turns if was too much).
Note that perhaps you have an install problem because I did install the last version and have no problems for now with the barbs hp and str. Don't know on raiding because now I never let the approach if I can
