You're thinking in way too much detail here. What I proposed is such an abstract idea to interact with the internet, and you're talking about phishing attacks.
Don't be so critical about crazy ideas; people who invent are only successful if they think outside the box and don't carry much concern for the constraints that currently exist in present day systems (like phising, url structures.... forget about that)
Phishing attacks were a good example, but I don't feel like I'n being too critical! It's a good concern.
Similarly: I'm hoping that you're also someone who's annoyed when Windows hides extensions. Yes, you can figure out how to restore extensions so you always have the extra piece of information--- but can your mother? Can your nephew? These computer users are learning less about files has "conveniences" them with simpler filenames.
Don't be so critical about crazy ideas; people who invent are only successful if they think outside the box and don't carry much concern for the constraints that currently exist in present day systems (like phising, url structures.... forget about that)