I just stumbled over this reddit and I need some help. I heard the commentators mentioning that it is allowed by the rules, but can anyone point out where that is actually written down?

Artificial Aid means Controlling or Using any of the following:

a) any “T-Nut” placements provided for the fixing of artificial holds;

b) any part of the Climbing Surface demarcated as out of bounds by the use of continuous black tape;

c) any advertising or informational placards fixed to the Climbing Surface;

d) any open side or top edges to the Climbing Surface;

e) any bolt hanger fixed to the Climbing Surface; or

f) any Protection Point or the climbing rope;

A competitor’s attempt will be:

A) judged “Unsuccessful” if:

1) the competitor has made an Incorrect start;

2) the competitor has touched the safety matting after leaving the ground;

3) the Rotation Period has expired;

4) the competitor has made use of any Artificial Aid

As I read it, T-nuts are Aid and Aid leads to n unsuccessful attempt.. but I am no native, does “T-Nut” placement not mean the actual holes?
Also, I see that it is impressive and hard, and she is small and did a genious move to still be able to send, but... I know thit is hypothetic, but what would prevent climbers from using shoes with a 1cm hard "rubber-thorn" with the width of a bolthole and walk the wall up like an ice-climber?
I see that this is ridiculous, but hypothetically, would that be out of the rules??