That's a strange article. I'm not sure what it is grounded in.
Love's USG is indeed 'down' from last year, but (per basketball-reference.com) it's only slightly so, from 26.4% to 25.2%. And that's still a LOT higher than his first two years in CLE and, overall, pretty high usage, typical of a #2 option. And not a ton less than his typical ~28.x% USG he posted his last three years in MIN.
His scoring efficiency is top-notch so far, at .594 TS%, which would be a career high if it holds, and his defensive rebounding rate is still elite at 28.5%. He's averaging 21.6 points, 2.4 assists and 12.8 rebounds per 36. Those are almost identical to his MIN numbers (21.1, 2.7, 13.4).
That team has problems, but I'm not sure I agree that Kevin Love is the problem.
I also disagree with the notion the article pushes that he might not mesh with Thomas. He and Thomas have history going back to when they were kids and their games are likely to be far more compatible than the Kyrie+Love pairing ever was because Kyrie didn't play near the amount of pick & roll/pop that Thomas likely will with Love. Basically, whenever Lebron sits, you should expect the Cavs offense to become IT & Love doing a two-man game similar to the way IT & Horford played.
Defensively ... yes there are definitely issues there.