I think they just want to see another player with their hand on the ground. That is how they define fronts, how many people line up in a 3 point stance.
This is my only complaint with that. Bitching about defensive scheme when you don’t know defense. Complain away, I’m not saying that at all. And I’m not anti 4 man front but that completely changes what you do at LB and secondary level.
I actually prefer a 4-2-5 to a 3-3-5, but a 3-3-5 gives you so much more versatility because you have one extra hybrid type athlete out there