We can't buff types since it would mean changing game mechanics. Also, even with a Talonflame ban, Fire and Flying won't really miss it, with powerhouses like Skarmory, Gliscor, Landorus, Charizard, Heatran, Infernape, etc.Thats the thing though, why not buff types that need them instead of banning Talonflame which will hinder Fire's ability to be competitive.
Steel has so many ways to check Talonflame it's not even funny. Heatran, already great on Steel for its Fire immunity, almost puts a full stop to Talonflame (and I say almost only because Stallbreaker set exists) and gets Stealth Rock to boot, Mega Aggron laughs at Talonflame's attempts to do damage if it runs RestTalk, or it can invest in Attack to OHKO Talonflame with Heavy Slam after SR, Scarf Cobalion can revenge kill Talonflame fairly well (although only once), as does Scarf Magnezone assuming Adamant Talonflame. Also, the fact that many Steels get Stealth Rock and Rock-type moves certainly helps.The problem with your claim is that Kaiser mains Steel mono. With bias he would gladly see TalonFlame gone. That and I know them both they know what they are talking about. They are way more credible for the discussion of this if they been playing that much and is safe to assume they care about the tier. Which is why getting the higher ladders is a part of a regular ban/suspect
A few calcs:
252+ Atk Choice Band Talonflame Brave Bird vs. 252 HP / 0 Def Heatran: 111-132 (28.7 - 34.1%) -- 99% chance to 4HKO after Leftovers recovery
252+ Atk Choice Band Talonflame Flare Blitz vs. 252 HP / 252+ Def Filter Mega Aggron: 136-162 (39.5 - 47%) -- guaranteed 3HKO (ResTalk set)
0 Atk Mega Aggron Heavy Slam (120 BP) vs. 4 HP / 0 Def Talonflame: 114-135 (38.2 - 45.3%) -- guaranteed 3HKO
252+ Atk Mega Aggron Heavy Slam (120 BP) vs. 4 HP / 0 Def Talonflame: 150-177 (50.3 - 59.3%) -- guaranteed 2HKO ------ NOTE: this variant is not entirely safe due to being 2HKOed by CB Talonflame, but according to PS! it's the highest in usage.
252+ Atk Life Orb Talonflame Flare Blitz vs. 252 HP / 0 Def Filter Mega Aggron: 148-175 (43 - 50.8%) -- 3.1% chance to 2HKO ----- LO Talon on above Aggron
252+ Atk Choice Band Talonflame Brave Bird vs. 4 HP / 0 Def Cobalion: 189-223 (58.3 - 68.8%) -- guaranteed 2HKO
252 Atk Cobalion Stone Edge vs. 4 HP / 0 Def Talonflame: 452-532 (151.6 - 178.5%) -- guaranteed OHKO
252+ Atk Choice Band Talonflame Brave Bird vs. 4 HP / 0 Def Magnezone: 52-61 (18.4 - 21.6%) -- possible 5HKO
252 SpA Magnezone Volt Switch vs. 4 HP / 0 SpD Talonflame: 312-368 (104.6 - 123.4%) -- guaranteed OHKO (even Volt Switch)
How many people high on the ladder main Grass, Bug, or Fighting? Find one of those people, and figure out how they deal with Talonflame. In fact, if I mained Steel, I would be biased a little bit towards anti-ban since running Talonflame means one less teamslot on an opponent's mono-Fire team (which could potentially be a lot more threatening than Talonflame to mono-Steel).