Yeah, I agree it’s going to be time consuming. The grid is part of the frame that holds the glass in. Like some else stated the glass may fall out. It may fall out when you apply the window film. You’ll need someone on the outside to behold the glass in place while working on it. By the time you take the frame off, apply the window film, reseal and attach the frame. It’s probably gonna be a wash. But hey. Do what you’re comfortable with.