Yes. Too many people are exposed to cheapie "repro" flinters. The lock/touchhole system on most of those is just horrible - it is amazing they work at all (often they don't). Plus, most people don't know how to manage or load a flinter - they will fill the pan with powder, so it burns like a fuse, and pound bullets down the bore with a hammer (!!) or a "short-starter".
The old-timers never did that - they loaded easily with the ramrod and they developed loads that didn't build up fouling in rifles, so they could shoot all day long without needing to clean between every few shots, etc, etc. They used just a touch of powder in the pan for instant ignition, etc.
A well-built and well-managed flinter in the hands of someone who knows what he is doing is a very effective sporting arm indeed. The biggest weaknesses are the poor BC and terminal ballistics of a roundball and the fact that the traditional tiny, low iron sights are very hard for those of us with some years under our belts to see.
