There’s certainly a lot of category A when people complain about music, especially very technique-forward music, lacking “feel.” I think Category B is a bit more valid, and I think you’re right that a lot of this is just lacking the vocabulary to express why something fails to connect emotionally, though I suppose in some instances it’s also just a shorthand - “I can exprss why this doesn’t connect with me emotionally, but it’s a pretty long and convoluted point to make and the upshot is the same, just that it doesn’t make me feel much of anything.” Which I guess is fair too, though sometimes the why is pretty helpful.
For me, I think, certainly with technical music but even with less technical stuff like slower sparser blues playing, I think it usually comes down to “does the technique serve the music, or does the music serve the technique?” IT doesn’t have to be blazingly fast for a solo to be very pattern driven and mechancial and even and, well, uneventful, and you certainly CAN do some very fast stuff that, used judiciously, keeps the listener on the edge of his seat.
The tune in the OP probably inst the greatest examnple becase even at full shred MAB isn’t really an egregious offender here, but to @kgk’s point this is pretty clearly a situation where the song was being used as a jumping off point to showcase a very technical solo rather than a solo being something that takes the song to another level - the song was kind of the plain white bread around the solo as the meat of the sandwich, rather than this being a well-crafted sandwich where the solo is just maybe a spicy dressing to take the sandwich up a notch and elevate the whole thing. So, given that from a compositional standpoint this isn’t really a scenario where the solo is trying to add something, it’s also a little hard to go and evaluate it in terms of “feel,” since it’s barely even a composition.