When you have to suggest something like adding RNG and stat limitation, you lose the right to say anything about being tactical.

You could have suggested for a better stage design that involve interaction with objects to beat a fight while infinite respawn happen, or to come up with new abilities alter ini, like a cheap ini version of Adrenaline rush with Ini penalty on expiration.

Maybe make Ini give a bonus like first turn free movement up to x meter based on ini for better planning without The Pawn?

Did you even consider that super long and cheap wit buff exists, like the drug den in Act 2?

Get to at least later half of Act 2 or even play through Act 3 first and the strength of round robin will become more obvious. First come first serve has always been a bane of tactical gameplay because it results in even more bloated stat with multiple final forms just to guarantee the enemy won't die straight away. Stat will always be easy to stack and that's why strategy game will try to come up with some sort of diminishing return for them and just go real-time to avoid the problem caused by the nature of turn-based combat because stat like ini is so flat it's just "Higher than X at level Y = OP".

Just look at it from a level designer perspective. How are you going to design a stage and combat that won't get rekt in turn 1 by wit stacker in an FCFS system? Place them so far apart they cant' be targeted on turn 1? Then they can't target back either. Give all of them grounded? Then that just goes to show you have no idea what to do with teleport. Round Robin gets rid of all those problem and it's why modern turn-based game like Wakfu reworked the ini system and went with Round Robin during its development with ini being used for some other bonus instead.

Play through the game first to see what really changes before making a comment. Bias first impression never works well like how I trashed Tactical on the first day too.