Oh BTW, for those saying the knee darts date back to the visual dictionary; they in fact
go back to the very beginning.
Heck, even in some of the comics under the new continuity, Boba's come across as a ruthless killer only out for himself, with no apparent code of honor. Then we see him pledging a debt to Din for returning his father's armor.
I guess sometimes near-death experiences can help you rethink your priorities in life.
I don't see those as mutually exclusive. Clearly, he IS a ruthless killer. Always was. A code on honour just means he has a personal set of rules he holds himself to, and they don't have be be very
nice rules. What those rules are are up to him. Here it seems "
a Lanister Fett always pays their debts" is a big one.
I admit it's a bit of a blur for me at this point, but I don't recall any canon stories where he does anything particularly underhanded. Cold, heartless, brutal, and mercenary, sure. But nothing overtly dishonourable.
It's the never did anything and garnering so much adulation that gets under my skin.
Well he can hardly be blamed for other people's armour envy.

Seriously though, I don't see the problem. He looked cool. People like characters that look cool. He was specifically designed to stand there and look cool. Box checked! Job done! One may as well be mad at how much people liked the X-Wings.
Personally, my problem with that whole part of the fandom wasn't with Fett as a character, but the fetishization of the Mandalorian warrior culture (not the same thing as an honourable martial tradition, there's a subtle distinction.) It's why I like how canon are characterising them for what they should be: a bunch of violent, oppressive zealots that turn tyrant the second they achieve power.
It's also why I liked Sabine's arc in Rebels; as through both Hera and Kanan she learned as more Jedi like path of using her skills not for power, glory or even honour, but selfless service to the helpless. Contrast that with Death Watch's attitude towards
"the weak".