Until recent years what we call "magic" as in the performing arts was considered a form of Juggling. The magic the Bible warns against are things where people are doing things such as casting spells, reaching out to a supernatural power etc. What people like the Fellowship of Christian magicians do is like other ways to illustrate stories. And these illusions are only one art form of study in Fellowship of Christian Magicians. Others include Chock drawings (I remember growing up in church we had a lady who did wonderful chock drawings and I wish we had more young people who can do this art form.) face painting, juggling, ballooning (Is that deception since they fool you into making the balloons look like different objects?) puppets, ventriloquism, clowning, drama/mime/storytelling, as well as illusions.
HMS Richards Jr. was quite an accomplished magician in the entertainment form and his father a big fan of magicians.