For Wi-Fi though? Seems relatively low risk to me. Concerns over password security can be mitigated by those that care by using unique, randomly-generates strings per service.
People are generally less worried about wifi password quality, so perhaps a DB of the general types of passwords people use would be useful for an attacker? (regardless of the ability to defend oneself -- in any dense population area, the attacker only has to find one person with a poor password)
The random string I use for my IoT devices' wifi password showed up on haveibeenpwned, so some IoT device cared enough about it to leak it.
Don't know... Having an intruder in your home wifi seems pretty high risk to me. And I don't even live in a country with high chance to get killed upon a visit by your friendly neighbourhood SWAT team...
The one featured seems fairly legit, I believe it pre-dates the wifi spec.