You're seeing what you want to see. His assists/36 mins is a career low (1.7) and about half his career average (3.0), while his shots/36 is right on his career average (13.2). He's actually shooting just as much as ever, but passing to the open man far *less*.
Breaking down his shooting, his three-point attempts/36 are a career-high (4.5) while shooting a career-low percentage (30%). He's barely better at shooting 3s than the much-maligned Exum, and they both jack up 3s at the same rate per 36 (4.5).
Now to be fair, he is shooting a career-high percentage overall, and is way, way better on his two-point shots. He hovered around the 40% mark inside the arc over the past two (short) seasons, and has never been above 48% in any season, but this year he is at 55%. Perhaps it would have been more accurate to say he is taking better shots, rather than claiming he is passing them up. But he is still the same score-first Alec, maybe even more so, but at least is taking better shots.
A very subjective assessment, "better shots". But still accurate - he is the worst shooter inside the arc out of everyone on the team, making only 44% of his two-point shots. His 33% rate outside the arc is also uninspiring. So yeah, pretty much everyone on the team is a better shooting option than Lyles.