This seems weird at first site but Bing Webmaster Tools has a beta option to import your sites from Google Search Console. Yes, it seems the two search engines are working together to get more webmasters to verify their web sites in Bing Webmaster Tools.
If you login to Bing Webmaster Tools, you may see an option at the top right that reads "Already verified on Google Search Console?Beta. Skip verification by importing your site." This is followed by an "import" button. Here is a screen shot:
Hat tip to @sunnykujjawal for sending this my way...
Forum discussion at Twitter.
Update: Bing just wrote about this on September 12th, weeks after we covered it.
