we’ve seen it twice. once in the electricity plant, and once with that zolt dude.
let me ask you this. did you expect to see non-lightningbenders in the electricity plant? the ELECTRICITY plant? making the claim that lightningbending is commonplace based off that is analogous to saying every American must have a PhD in computer science because you walked into an office at Google.
in other words: you saw a lot of lightningbenders there because they’re the only ones that can do the job.