1. A more accurate statement MIGHT be COLLEGES REGISTERING. In those cases that actually send someone, the attendees would likely be assistants. (Which is fine, by the way.)
2. My presumption is, every school that registers will be mailed a registration packet that includes player info/data. Coaches might then order video of specific matches. (Which is also fine, by the way.)
3. No single live viewing is going to change anyone's life. Coaches recruit based on a body of work, including references from friends in the prospective recruit's area, then CONFIRM what they've heard by multiple viewings, whether live or video. Which leads me to ...
4. In general, this kind of list is nothing more than self-promoting fluff.