Ehh, it's very possible we just move differently. Im very long(80 in reach), and like to keep people at the end of my strikes. When I am in the pocket my head is usually low and in your chest, or on your shoulder in a over under or double under. Entangling arms from a square position at that range just isn't something I have been able to make work.
In full sparring it's less about entangling and more about bridging (if my chun terminology is correct).
Say you pull up a boxing style cover to block a punch, as his hand retracts chi sau for me is what let's my blocking hand follow his punching hand back, either hitting or trapping his retracted arm....
Or
Off the same block I roll my hand over to pull his extended punching arm as I counter strike over the top.
I can do the reverse off my strikes if he blocks me, turning the impact into a trap/clear to land more shots.
I use the skill to take myself from defending to attacking OR to keep the pressure on.
I think people get caught up in the endless trapping battles you get in training.
Each strike I am able to make as a result of sticking to him, should imo be the start of a striking combo/barrage with more trapping only necessary if you reach a natural end to your attack or he interrupts you and you need to regain initiative.