I'd be interested to see a link to these taste tests you speak of. I mean finding a hundred people that can't tell the difference between Coke and Pepsi wouldn't be that hard either.
Lets look at it this way...has anyone ever accused a propane grill of creating better taste than charcoal?

Hamburger purist checking in. Quality chuck (not too lean) shaped into a patty and cooked on a CHARCOAL grill...thats it...if the meat is good enough you may not even need condiments.

I'll go to a friends party and it looks like they are making freaking meatloaf. Seriously, putting everything you can find in the fridge doesn't make a burger any better. Then cook it on a propane grill (sob). I'm so tired of pretending that I like it. I'm going to start being honest this summer.

I live in Florida, working outside in the summer basically destroys your appetite. I had a huge job I started at sunrise about 6 am , didn't eat anything all day, plenty of fluids of course, and finished up at sundown about 9 pm. Driving home I still didn't feel hungry although I had a headache and pangs. I knew my body needed food, I just didn't feel hungry.

I pull into a BK and walk in (I feel so rushed at the drive thru speaker) and order ONE regular cheeseburger. Someone mentioned this before, but that first bite with melted cheese mixing with the mustard and the ketchup and the smoky hint of the beef caused a sudden violent earth shaking instant return of my appetite.

So now I'm standing at the counter devouring my single cheeseburger that I bought two seconds ago like cookie monster nom nomming and asking the girl if I could have five more PLEASE!!! So yeah, I definitely know the "Wow, this is so good!" feeling, and scared the crap out of some teenagers that work at BK as a bonus.