I doubt it, because those other collection agencies probably don't have nearly as bad a reputation.
Also, there was no real reason to even send a "collection agency" (which the Pinkertons are not; they're a security firm) to Cannon's house in the first place. The cards weren't stolen.
I've asked a couple of times why they hired the Pinkertons, who are not detectives, primarily do security, and have a reputation for illegal activities.
You haven't given me your opinion on why the picked them. Instead, you have quite pointedly refused to answer.
They hired the pinkertons because they are a reputable company and one of the largest in the country that do things like track down stolen goods. Despite your insistence that they are jack booted thugs because of what long dead people did back in the late 19th and early 20th centuries along with being featured bad guys in red dead redemption 2 there's very little evidence they've done much of anything controversial in modern times. We don't know exactly but I wouldn't be surprised if they don't also occasionally deal with security issues for hasbro so they may well have already had a business relationship. But I didn't respond because it's obviously not going to matter because you've bought hook line and sinker into the internet outrage machine and can't even be bothered to listen to the podcast that started the whole thing.