^^^ Related to that, in Houston, he's not a draft bust, he's just a dude. He's not, like, a guy that the Rockets passed on Antetokuonmpo to get.
Also, and this is something that I have started to observe more closely since I stopped rooting for teams, you can't understate the impact an athlete's salary has on how they are perceived by fans. For what the Rockets are paying McLemore, virtually any net positive production they get out of him is going to be met with extreme enthusiasm.