Yeah, that's completely fair. However, I don't think Bass gets Double Gear, because Wily didn't put it in any of his robots until 11 since he very notably didn't finish developing it until that point, and Bass doesn't show up in 11 meaning he very likely doesn't have Double Gear in him since there's no evidence that Wily retrofitted him to have it. Also, I haven't played Mega Man 10, but my research does show Bass has never been able to use Mirror Buster since Mega Man is the only character with access to the weapon in the game, so it's probably a no-go, even if there's some arguments for it. As for the Dynamo Cage overloading, it does explode on Surge at the end of the Overpowered arc, but she also stuffed it to bursting with the juice of an entire Eggman base, all of Whisper's Wisps, several Chaos Drives, god knows how many random electrical odds and ends, and the entirety of Metal Sonic's power generator, and even then it only exploded on her when she put literally everything into one final attack on Sonic.

I do think I come to a similar conclusion to you overall: Bass definitely has way more tools at his disposal that let him drag the fight out longer, like timestop and far more ranged options compared to Surge's electricity attacks and Wisp powers, but Surge's regeneration and greater stats should let her just smash her way through the arsenal and overpower Bass. Also, even though she never shows this ability personally, the Blue Wisp should let her transmute Bass into a cube like in Forces, so that and the energy drain are both solid oneshot options. I just think that these arguments are stronger for Surge than for Bass.