Top 10 Dumbest Batman: The Animated Series Episodes from Eli Stone on Vimeo.
I have a VERY nostalgic connection to B:TAS and I count this show as one of the best series i've ever seen. Watched every episode on their original airdates and everything... and you know what? Yeah, I 100% agree with everything you said. I never liked a single one of these episodes. None of these are really that memorable to me, notr ever made an impact on me. Granted there are episodes I think are even worse than these, but I really don't have any problem with anything you said. So, I don't really think you have anything to worry about as far as backlash goes. Again, I have a huge, nostalgic, and very defensive love of this show for the most part, but i'm MORE than able to unbiasedly say that these episodes are clunkers. I would also throw in The Underdwellers, Prophecy Of Doom, The Mechanic, The Forgotten and Eternal Youth as well.
The only choice I disagree with is The Underdwellers due to how much I love to hate the Sewer King. He's so vile, I wanted Batman to break his one rule, or at least fail to save him. Still to each their own.
Honestly if you want a good ending for Mr. Freeze for the BTAS variation of the character check out Batman Beyond's "Meltdown" which bother not only making Victor Fries actually tragic and relatable again but actually has him go out on a note of dignity. Yeah there's still having to deal with just being a head at first but... Batman Beyond is a series where that sort of idea and thought works way more then in BTAS or even TNBA and again is trying to bother cleaning up the mess of "Cold Comfort" which I remember even at the time being badly recieved by the fans so I could understand why you would feel it's the worst.
Freeze's popularity thanks to Batman: The Animated Series was so great, that is brought him back to life in the comics, where he had been dead for YEARS. Also, as a longtime DCAU Fan, I must say hero. I applaud you for having the balls to let it be known that even this show isn't perfect.