Agree. But apparently other users requested this feature. As always, some people want some behavior others don’t. I presume the DTTG developers invest lots of time in developing certain features and likely there will always be users that start asking questions why on earth they changed something 
The downside of yet another button could be cluttering of the menu items for example. The image posted here nicely describes that.
I’ve personally decided to stick to Edit button now that I know why the change was made.