...You know, I wonder how much of this endless discussion would stop happening if Pokemon had a reasonable mod scene. Yes, there's romhacks, but mostly for old games, they're not exactly accessible for the average fan, and they usually change a LOT. And something like pet mods on Showdown don't really give players a good overview of how any change would affect things.
But if players could just open NexusMods and download a "Rebalanced Typechart All 18 viable!" or "Every mon gets reliable STAB" fix alongside "Beach fashion V3.0" and "Harder Boss lineup" mods, presumably at some point the fandom would figure out "Oh hey Dragon really doesn't need to be nerfed" or "Bug is fine if you just give it better moves for mid/lategame". But without a good way to test how things play out in a normal game, repeatedly, for a decent number of players, this discussion is going to keep happening.
But if players could just open NexusMods and download a "Rebalanced Typechart All 18 viable!" or "Every mon gets reliable STAB" fix alongside "Beach fashion V3.0" and "Harder Boss lineup" mods, presumably at some point the fandom would figure out "Oh hey Dragon really doesn't need to be nerfed" or "Bug is fine if you just give it better moves for mid/lategame". But without a good way to test how things play out in a normal game, repeatedly, for a decent number of players, this discussion is going to keep happening.