I see where you are coming from about the "meaningless pens". However, I think it's a stage where no matter what level, you will be judged. Last year at my sons college games whenever there was a draft eligible pitcher warming up many of the scouts would be right there front row. Afterall, they get the opportunity to look up close and personal usually within 20 feet at mechanics, ball movement, nerves, and whatever else they look for with out having the game as a distraction. Pitchers are the only position that gets these solo performances on a regular basis. It may be hard to get focused and pumped during a pen but I think it is something to work on because you never know who is watching.