People eating lots of meat is a fairly recent thing. In many cultures meat used to be at most a once or twice a week kind of thing as opposed to a big part of one or more meals you have every day these days. E.g. traditional Italian or Indian diets do not actually include a lot of meat. It's their popularized modern variations that tend to have a lot of meat.

Insects are popular in places where meat is still relatively scarce/expensive. I'm sure it's a great source of protein if you are in need of protein and there's nothing else around. However, I prefer to eat things because they are delicious. I could probably feed myself on a shoe string budget by giving up most of the things I enjoy eating/drinking. But why would I want to?

The trick is going to be feeding 11 Billion people in a way that is actually enjoyable. Insects are going to be a hard sell to someone who can afford a steak. On the other hand, shrimps, lobsters, etc. are just under water insects (or at least closely related). I don't particularly enjoy them but for lots of people they are kind of a delicacy and a completely normal part of their diet. A lot of these kind of things are learned behavior.

Science giving us options is a good thing. But I'd say they need to focus more on the eating experience than on just the protein content/nutritional value. Things like texture, juiciness, umami, maillard reaction etc. All the reasons people like steaks basically. The kind of things that get foodies excited.