These are my stats. Im on disc 4. I also dont have great abilites neither. These are my strongest party members.

Kenny/Zidane Lvl 54
Speed: 29
Str: 46
Mag: 40
Spirit: 36
Att: 71
Def: 25
Eva: 25
MD:29
ME: 14

Dagger Lvl 48
Speed: 25
Str: 32
Mag: 47
Spirit: 29
Att: 23
Def: 25
Eva: 20
MD:19
ME: 20

Torry/Vivi Lvl 46
Speed: 22
Str: 29
Mag: 44
Spirit: 30
Att: 27
Def: 33
Eva: 31
MD:14
ME: 4

Steiner/Knife Lvl 45
Speed: 22
Str: 46
Mag: 32
Spirit: 31
Att: 74
Def: 25
Eva: 17
MD:14
ME: 26

The answer is, if you can continue the game with the stats you have got then no. If not, then bolster those numbers women.