Why was pull to refresh removed, it was a great feature only to be lost when you updated to the newer versions. Now it requires to clicks to refresh where before it was a simple swipe. It was something i did often in my work flow.
Pull To Refresh was removed because it conflicted with certain types of web pages (e.g. Google maps) that don't have a "top" of the page. On pages where you'd want to constantly be able to scroll up, the Pull To Refresh feature ended up crippling the page, and we couldn't find any way to differentiate between pages where it was ok to have PTR and pages where it wasn't. So, in the interest of making sure that Edge Inspect didn't interfere with normal page functionality, we moved the refresh function on the device to the menu button in the upper right.
Hope this helps,