Originally Posted by
Lightning Rider
My point is that post-Speedforce Wally went against the Rogues many times and writers still found ways to make the conflict believable.
What you're describing is Killer Frost, Ice, Icemaiden, Ice Man, Icicle, etc. which just isn't as interesting to me and changes the persona/themes of Captain Cold & the Rogues.
Sure, if you make the Rogues more powerful, then they will be more powerful. But I think it makes them less special and they lose in the trade-off. It's not SO implausible and unconvincing that writers can't find clever ways to do it. They have and will continue to.