A lot of this has to do with the magicians themselves. We are the ones providing the entertainment and it is our responsibility to tailor that entertainment in a way that will be appreciated by the audience. If you know that the audience isn't educated on what makes magic "good," then you have to present your magic knowing that.
Magicians need to step out of the clichés of magic and start providing real pieces of entertainment. It doesn't matter how well you dress up and choreograph a woman in a box: it's still a woman in a box and there's no real dramatic or theatrical reason to put a woman in a box... it's not something that people can identify with.
Remember, WE are solely responsible for how we are perceived. You can't change what a person is going to think about a particular thing, the goal is to provide the very particular thing that's going to get the response you want. If people don't understand magicians, then it's the magicians' fault.
Dan Sperry did an excellent job, and I fully agreed with Howie Mandel's assessment of his arm cutting illusion. Dan's first performance was VERY charismatic and engaging; it was all about HIM, and that's something that he can sell.
Specializing in storytelling, artistry, and believability