The final paragraph of the article explains why they choose to port their existing tools: <With Linux's growing adoption as the preferred OS for running Azure

The final paragraph of the article explains why they choose to port their existing tools: <With Linux's growing adoption as the preferred OS for running Azure VMs, it's only natural that Azure engineers are now looking into porting their favorite debugging utilities to Linux, for both themselves but also for the company's customers. I find that to be a perfectly valid reason.