MatPat's Portal 2 theory debunked

I haven't seen anyone else talk about this, which I find strange, since this is one of the biggest Portal theories, despite being so simply incorrect.

His theory goes that the companion cubes in both Portal 1 and 2 contain the bodies of Aperture Science employees, and that's why they have to be incinerated: They can't go through the field at the end of the chambers, as the cube will disintegrate revealing the body inside.

He uses the fact that you need to incinerate the cube in Portal 1, instead of bring it, when really this is probably GLaDOS trying to torment Chell for getting attached to the cube.

He also uses a scene in Portal 2 - that is the only part of the game with companion cubes in it - as proof, because that, as well as being the only chamber with a companion cube, is also the only chamber where the emancipation grill is down.

Now, while he uses that chamber to prove his point, something he didn't think to mention was that if you try to take any of the companion cubes any further than this chamber, GLaDOS disintegrates it - And there's no corpse inside.