Why will it give all street magicians a bad rap, do you mean then that Blaine, Angel, Garcia, etc will be doomed if others go up to people and politely ask them if they would like to see something neat or see some magic??? You are painting with a broad brush there. Now I don't do street magic but do perform in bars all the time, and I just walk up and ask if they would like to see something neat or cool. I have only been turned down once, even entertained a wedding party, of whom I knew not one person in the group.
And since when is it wrong to talk to people? You have to wait for them to talk to you first??? Sounds paranoic to me
Also notice all three live in huge cities and have a camera crew. I think if the people want to be entertained they will come. Its much easier "fishing."
When fishing do you chase them? Or set out some bait, waiting for them to go to you?
I wouldnt want a mime, "robot" or musician bothering me to show me something. You dont see that either. Why? because they know they can bring the people to them.
I see bars, weddings and partys as a totally different fields, than open streets or even the mall. Even those frist three are usually approached in slighty different ways.
So talk about "Broad", you examples were rather broad.