Why is the industry so far behind?

Looking through search engines it’s apparent that there is very little information on epigenetics studies. Why is this industry so far behind when a big number of diseases could be connected to it? I mean wouldn’t targeted demethylation be a huge financial incentive to those in the industry who wouldn’t have to worry so much about the consumer getting permanent side effects anymore? I’ve even talked to people who have novel backgrounds in CRISPR but seem to be lacking in knowledge when it comes to this approach.