160 is a wasteland. Charlo, Andrade and Munguia have all moved up. GGG is retired. There is no one to challenge Janibek.
Precisely, the talent gap between him and all the other middleweights is huge. Janibek should just have a fun little title reign beating up lesser fighters for good money.
Even now I think we're still at the stage where the opposite question is true "does Janibek beat anybody?" He's not even as proven as Pirog yet and we all saw the disgusting amount of hype he received so it doesn't surprise me.