I'll deal with the practicality question first. In terms of practicality, there are two responses. The first thing is you need to understand that when people think about criminal organizations they tend to use an analogy to corporations. They think they operate that way.
The better way to think of them, particularly outlaw motorcycle gangs, is as a medieval guild. They tend to be a band of brothers of like-minded individuals, but they commit their own crimes in their own way. Oftentimes they're in rivalry with each other. So when you think of a criminal organization you have to understand that once you get past the label of it, they don't operate the way corporations tend to operate. There's no one bank account in Switzerland where all the money goes and then there's a payout of shareholders at the end of the year.
The other part of practicality is that juries and judges need to understand context. If an outlaw motorcycle gang tells a person they are going to take them on a ride out of town, that has a particular context, a meaning in the outlaw motorcycle world. A jury doesn't understand that unless you call expert evidence and some background to put that in. So the crown is still going to have to call evidence about the organization and how it works in the trial to understand certain facts. A fact may be innocuous to you watching, like hearing on a wiretap that they're going to take you out of town. But it could mean the end of that person's life in the biker context.