What leads here, and where this position leads.
Lying flat with your back and shoulders on the mat.
Why it failsFlat hips generate nothing; they posture up, open your legs, and pass at their own pace.
FixStay on a shoulder with your hips angled, and keep at least one connection pulling their posture down.
Squeezing the legs harder as your only answer to posture.
Why it failsLeg squeeze burns out quickly and does nothing about the arms that are prying you open.
FixUse collar and sleeve grips plus an angle change to break posture; the legs only hold them in place.
Holding the closed guard passively while ahead on points or time.
Why it failsReferees and the position both punish it: your legs open eventually and you are underneath with no attack ready.
FixKeep a live attack chain running; if you need to stall, at least stall from a grip that threatens something.