It's all good - sometimes I take my bike, sometimes my car to go to the nearby grocery store. Same with sharpening. There is no right or wrong answer here.
Agree with that. Use the approach that works. My local/professional knifemaker dude, who can sharpen at the highest level of perfection by hand OR on his belt sanding setup, does this. He uses the belt sander for his high volume sharpening business, the belt sander is how he can afford to QUICKLY get a very high quality edge that has a consistent angle, and be able to charge customers what (to me) seems like a ridiculously reasonable rate for our area which is rather high cost of living. Typically like $7 for a knife or an axe, even if major reprofiling is involved, as he recently totally reprofiled a crappy axe for me and turned it into a real chopper for a measly $7. His belt sander in no way compromises the quality of his sharpening, all it does it enable him to get a high quality, consistent edge, and repeatable results,
very fast, which of course is an advantage to his business. I totally get that and would do the same thing if I were him.
Similarly with guided systems like EP and WE. In no way do I look down on those, I see the case for using them (highly consistent angles, great results, and cosmetically perfect edges). I could theoretically still splurge for one someday, just because it looks FUN being able to put such a beautiful consistent edge on your knives. I totally don't NEED it, but yes it does look fun and appealing.

But for now, my Sharpmaker provides good enough results for a semi-freehand/semi-guided type of system. When I want higher angle consistency, I can just keep using the Sharpmaker and settle for either a 15 degree or 20 degree edge. My local knifemaker recommends the Sharpmaker too as the best low-cost semi-guided type of sharpening system available, and he said the vast majority of blades that people use are just fine with one of those two angles anyway. In fact, when he's training people in his knife making and sharpening classes, he actually recommends Sharpmaker as a low cost simple starter system that gets good results and helps teach people the key concepts of sharpening. The sharpmaker is a great trainer, and also a great fallback system, when things don't go well freehand on my DMT stones.
So without knocking any of the other proven effective approaches and tools for sharpening, I still have to say my preference is somewhat similar to what 42 has articulated. It's just this desire to keep things simple, and to be able to do some things by hand without dependency on specialized gadgets, and to maintain a few old world craftsman skills. If nothing else, this will help on backpacking trips as I can better sharpen my tools without lugging a bunch of fancy sharpening gear along.

I'd like to get to the point that I can get great, better-than-factory edges on my knives in terms of cutting performance--that's the only goal. Cosmetic perfection isn't important to me, because I'm not a knife collector at all, every single knife in my collection either gets used or sold off.