At the end of the day, the FTC does not distinguish between Advertiser, Advertising Network, Marketer or Affiliate Marketer. They all have the same liability when it comes to deceptive marketing and unsubstantiated claims. They just don't have the resources to prosecute everyone currently.
This is one of the big reasons that major advertising networks (ie: Google) are stamping out certain types of promotions.
If your "marketing" approach is to try and trick your visitors into taking a free trial that doesn't disclose the continuity, be prepared for a short lifespan.
There will be people that are made examples of. These will most likely be the highest volume affs.
Affiliate Networks are already taking this more seriously since FWM Labs was hit with a lawsuit and the douchebags there immediately threw all the networks under the bus saying it was their affiliates that were doing the deceptive marketing.
What do you think the CPA Networks who want to stick around are going to do? They're going to have to clamp down or face the same scrutiny and legal problems.
That being said, if you're doing volume and using crutch marketing, a legal team is not a bad idea. In my opinion anyways.