I think that every leader system has it's pro's & con's. I've used furled, tapered, knotted tapered, and straight sections with no taper & they've all done the job, once I got everything dialed in for the rod/line weight & flies I was using. Not all do a good job with all flies & techniques. I never did a lot of dry fly fishing, and when I have, a tapered mono type leader was all that I used, so can't really make a comparison. All the other leader types worked well for subsurface fishing, and they all turned over flies well, as long as the entire system was appropriate for the rod/line weight & flies I was using.
I struggled at one time with understanding leaders/tippets, many years ago when I was getting started. Eventually I learned enough to know it's not as difficult of a subject as it's often made to be, and quite easy to implement. The entire system has to work together with the rod/line weight & flies, and there's no single combination of leader construction & tippet selection that works with all flies, plus there's always more than one way to get the same results.
As long as what you use works well, and both turns over the flies you use, and you're catching fish, that's all that matters.
There have been many discussions about leader & tippets, and some get very technical ( Silver Creek always adds a lot of both technical input and common sense to such discussions) but it simply boils down to what works.
My biggest problem was trying to make what I was using fit all of the fishing I was doing, and it should be the other way around! Leader & tippet have to fit everything else. So start with the flies being used, then the rod & line weight. For example, for size 20 dry flies with a 5 wt rod, you'll likely want a different leader & tippet, perhaps longer & finer, than if you're fishing size 8 streamers or even heavily weighted size 12 nymphs. It's really as simple as that, but the entire system may need refinement.
I use some tapered mono leaders now primarily for targeting panfish, and have also been tying my own leaders for awhile using Yozuri Hybrid line for the heavier rods & larger fish I may target. It's worked well for me for that purpose, but may not be ideal for dry fly fishing.
You have to use what works for you.