A lot of legal departments have a mental image of AGPL (and GPL) as a bogeyman that will steal all the company's code if allowed anywhere near the building. I've sat through a presentation one time that tried to paint these licenses as something only basement dwellers use for personal projects. I spoke to the presenter afterwards and told them about projects like Linux and Mongo, and how even AGPL is not as scary as they thought.

The lawyer seemed genuinely surprised and said they would read up on it. I'm pretty sure my bringing this up in a friendly manner caused them to question their assumptions. Had I picked a fight during the presentation I'd just be labeled a basement dweller.

However, this lawyer also told me something interesting. To some extent it doesn't matter whether I was able to change his mind. As long as other lawyers in the field have this bogeyman concept in mind, the use of GPL will get flagged in due diligence, etc. and it's easier to simply not use a component with strong copyleft when developing a product (unless it's as irreplaceable as Linux).

This is a long-winded way of saying that selling exceptions will likely scare off potential purchasers long before they are in a position to consider the purchase. Most shops have a blanket "no GPL ever" policy and a dev won't even bother with the component even for a prototype.