No way Inoue's camp will stay away or avoid Casimero.
It's just reasonable for Inoue to ignore Casimero now because of some event that happened recently.
If Casimero wants Inoue to talk again, he should win against Butler first.
I think they consider Casimero as a threat, and we all know that Inoue's manager wants to protect his cash cow so we may have the impression that Inoue is avoiding Casimero. But I honestly think that Inoue wanted to fight Casimero it's that Bob Arum is the one trying to not make the fight happen and that is bad for us boxing fans.
However, they can't really avoid Casimero in the long run, sooner or later Inoue will run out of opponents and on the contrary it will back fire on him if he/they totally avoided Casimero in the future.
Casimero is always a threat as he always has the power like Inoue, if they'll allow Inoue to go toe to toe, then most likely the fight will end in KO, and Inoue could fall for the very first time in his career. Even if Bob thinks that Inoue could win, but if he is not 100% sure, then most likely that's risking his cash cow or investment, so they might consider a rematch with Donaire than Casimero.
Inoue has been treated like Crawford, they are under the same promotion and hopefully Inoue would reflect on what happened to Crawford that despite being an undefeated fight, he is still not getting big fights because fans are not so supportive of him compared ot the other boxers in the same division.
As per report, Crawford has not decided yet whether to renew his contract with Top Rank, so maybe he was thinking of ending his relationship with Arum and look for a new promoter that would give him a more challenging fights, and a chance to earn bigger money.