So, Hedjun, you're saying that *prior* to 3.5 all fighters were automatically dead in grapples?!?
I'm saying that in 3.0, a solo fighter (or a fighter without extraordinarily expeditious friends) grappling anything larger than itself was pretty screwed anyways, but 3.5 merely exaggerates this problem.
Let's use a, oh, I don't know, a Dire Tiger as an example.
3.0:
Dire Tiger has a grapple check of +25 (+9 BAB, +8 size, +8 str) as well as improved grab.
Dire Tiger attacks the level 8 fighter with AC 23, HP 64. For now, we'll say he hits with one claw, dealing 2d4+8 damage. He has an extremely good chance of winning the grapple check, so we'll say he does so.
Fighter's turn. He, being grappled, whips out his MW shortsword and attacks. He can manage to do 2d6+6 damage a round if he hits with his two attacks (+12/+7). The tiger, however, can do 4d4+16 + 2d6+4 damage a round if he hits with his attacks (2x +18, +13). Conparing their hit points (Fighter = 64 compared to Tiger = 120), and the fighter is as good as dead.
Now, it really depends on the party's ability to kill the Dire Tiger before he eats Fighter8 alive. The fighter has some options, like Power Attacking with his shortsword to do more damage. He can also attempt to escape (not all that likely).
3.5:
Fighter can no longer draw weapons freely, instead, he has to win a grapple check (hah!) to even draw a weapon, which means he's reduced to, umm... punching the Tiger. Good plan. If he happens to have some kind of magic item he can use to get away, then he's allright. Otherwise, well, the fighter is again relying on his friends to bail him out, or for a magic user to cast Freedom from Movement on him.
In other words, grappling screws the PCs over even more (particularly fighters) in 3.5, but if they wish to survive, they can either rely on a magic item (probably provided by your friendly local magic user) or Freedom of Movement (cast by your friendly local magic user). In other words, whereas in 3e a fighter has a chance, if slim, to fight off the Tiger, in 3.5 he's a roast goose unless the Cleric casts Freedom of Movement on him.