That's just ridiculous. I don't think that pixels "explode" on any screen. Find me some article or example on the web that would entertain that possibility.
If you look at where the holes are, they're by the touchpad where it's a hard surface that doesn't move. Apple designed these computers to be as thin as possible. So there's going to be almost no room between the display and the metal surface.
Something you can do is if you carry your computer in a bag or backpack, you should make sure nothing is pushing too hard on the computer. This will compress the computer, causing the crumbs to drive into the screen and create the holes/dead pixels.
Students who owned the old white macbooks would cram their macbooks in their backpacks, and soon they started complaining about the apple logo, on the other side of the display, burning-in through the screen and being visible from the display. Similar to screen burn-in.
Bottom line:
1. Brush off the surface and screen of your macbook before you close it.
2. Don't push too hard on the computer.
3. Don't use a display protection sheet, because it creates even less space between the display and base.
I use a Thule carrying case inside my other carrying case just to make sure nothing is pushing to hard on it. The Thule is a hard shell and has lots of space inside 😀