A better way to fix it would be to keep the model the same but change the punishment. I feel the biggest problem is they stick to many you got hit your dead mechanics. A better way to "fix" these fights would be to adjust how the mechanics harm you an example instead of twisters being your dead no matter what have it do a hefty sum of damage and tax your resources like say when it was new have it do 2000ish damage 150 tp damage and 500mp damage that way if people won't learn they will lose but at the same time if healers both eat a twister it isn't over instantly and that way echo and gear will make it easy but that's the point it's old and outdated were just gonna stuff it in a relic step somewhere so with gear and echo going back to it and being able to take it easy might make the grind somewhat fun?

I cant read all that poorly typed version: current model is fine if adjustments are made so instant death, is killing resources or buffing boss to point of impossible fight.