To be fair, Microsoft Edge is a reboot of Internet Explorer.  Better internals, yes, but it's not competing with IE— IE'S not receiving future feature updates, and is dead, with plenty of Microsoft-flavor harassment-ware to get users to install Edge instead.  So in terms of browser competition (as opposed to webdev compat or brand naming) you can see Edge as IE 12 (a major rewrite), and IE + Edge's marketshare has been #2 for quite a while.