But with the right implemenation and audomation as we did in in my webhosting company, it is evem more convenient for user. (unless LetsEncrypt is working). Certificates are reneved automaticaly without any user action. So I think EV is the key point here for other CAs. Also I think that in the next 2 years, every webhosting account will be created with HTTPS:// as default, without even asking the client as HTTPS with LE becomes a standard service out-of-the-box.