Like I said a football move is too subjective. Looking at a players body position to determine if they’re upright enough to establish themselves as a runner is a lot easier than trying to decide if they made a so called “football move.”
The football move is for field officials, because it's an observable act that either happened or didn't happen. The replay official then watches to see if a player did something or just fell down. If there's any doubt, he is supposed to go with the call on the field.
"Upright long enough" is for replay officials, because it gives the field official no physical act that he can look for. But what it does do is relieve the replay official of the burden of having to defend his decision. Since there's no act to look for, it's just his opinion about whether a player was upright. He has no accountability, and can overturn the call on the field based 100% on his judgment, since he knows there no standard for how many degrees is "upright."
Dez scored standing up on this play. Is he upright?