Umm… Technically they are lures, yes. But most fisherman separate them out into their own category simply called “flies”. Then tend to be much smaller and lighter then the standard fishing lures… And most fly fisherman have a superiority complex, so they want the distinction!
That’s the hope! I have a pretty good bluegill lake right around the corner, with fast action. I also have another with in 20 miles where the action is not as fast, but there is a chance for a master angler gill… You need 10 inches for an MA gill in Nebraska, and I have come within a 1/4 inch about 4 times!