It's definitely both. A lot of folks don't understand that insects and shellfish are similar, and I've yet to see "product may contain insect meal / aggravate shellfish allergies" on things that have crickets or are processed in facilities that handle insect meal. So, the FDA likely needs to catch up. But, it's also a cheap filler protein that's easily grown, and companies are cheap bastards, so it's going to slowly find its way in and push out more expensive protein options.
It's definitely both. A lot of folks don't understand that insects and shellfish are similar, and I've yet to see "product may contain insect meal / aggravate shellfish allergies" on things that have crickets or are processed in facilities that handle insect meal. So, the FDA likely needs to catch up. But, it's also a cheap filler protein that's easily grown, and companies are cheap bastards, so it's going to slowly find its way in and push out more expensive protein options.