First, BEFORE telling us WHY "Ted" switched from brand a to brand b....maybe you should ask Ted. Maybe he had a problem with his Onieda, and decided the benefits were not worth the problems....maybe it was just for money. Only Ted knows.
Judging by this thread, big or smaller game, nothing is a given when looking at heavy and light arrows (OK...2 lbs of KE isn't enough...given. then again5 fps isn't enough....given) and penetration.
Lastly, remember, magazine writers are humans...just like us....they just have a little better use of the english language (one would hope). Some of them can have the same trouble letting old ideas go. Just 'cus their PAID to write it, doesn't mean it's 100% accurate.
testing gives data, you may never have hunted a day in your life, but you could do tests, and get more data than 100 magazine articles that didn't use tests...just opinions.
Example. Chuck Adams...WOLRD WIDE known hunter. If you see him on a video, or read some of his articles, you might be led to believe that your set-up doesn't belong in the woods. He is VERY opinionated. And he has reason to be...it worked for HIM. That doesn't mean something else won't work, but sometimes Chuck makes it sound that way. Both Chuck, and Ted have killed a LOT of BIG game.....both set-ups are far from the others.
Use what works for YOU. Speed, KE, or momentum. If it's working, GREAT!