Actually the enemies stats in survival are perfectly normal, it's your own stats the get changed, which is very dumb system honestly.

Order doesn't matter in survival, in survival it takes all your total stats and gives 1/4 to each ninja. Thing is most good players focus stats to min/max, best refines on your move 1 & 2 ninjas, best defensive magatams on your tanks and etc. And the way survival works ruins that.

The problem is gear for enemy works perfectly fine, which is dumb, its should be same for both team. Either both use 1/4 total stats or both use correct gear.

Let's say you have 1050 initiative on your move 1 guy who you use to start combo and 650 on other 3. And your enemy is weaker with 800 on his move 1 guy and 600 on others.

But in survival it will add your initiative together to 1050+650+650+650(3000) then split it evenly to your 4 ninjas, so you will have 750 speed on move 1 guy and 750 on other 3, while your enemy still have 800 on his move 1 guy and 600 on others. So he will go first even though you have better refines because of how it works.