I don't think he's taking sides per se, but he is trying to explain the roots for the situation. He's not actually saying the Gateway is bull, but instead trying to explain the basic reasoning behind a company's work. Calling the Gateway the White Knight of 3DS hacking scene is absurd in many ways, since this is a company in question. If it was a random hacker that released the exploit to everyone and "let the scene decide" on how to use it, then we could have a White Knight situation.
As a side note, I find it kinda odd that people are ready to doubt and blame Mathieulth, yellow8, Normmatt and co for the problems here, when they were in many ways critical for usable flashcart software before. For example, how many people honestly used the standard AK2i loader compared to AKAIO? Sure someone could take sides, but then again, why would anyone start bricking people's consoles. If I had a Gateway for my 3DS (currently on 2.XX or 3.XX firmware btw), did testing with other flashcarts too and the code from the Gateway (be it their cart or someone else's) leads to my 3DS being bricked, I'd be pissed off. Really pissed. If this happened with the DS flashcarts, I'd have a dead DS Lite and DSi XL waiting for me since I did some testing with a couple of review flashkits (iEvo, DSTwo, AK2i, etc). But I digress.