After thinking about it, I'd rather see the plastic piece sewn in with the ends of the tubes on the outside of the tent which would put the trekking poles outside the tent instead of on the inside and make any mishaps with inserting the tips less catastrophic. I'm going to have to setup the tent again to see if that's even feasible.
It would also help if the ends of the crossmember were flared and maybe an inch longer. I'm going to go to the craft store (don't laugh) and buy 2 cake icing decorating tips which are shaped like a cone and put one in each end of the crossmember. This will allow my pole tips to fit and if I screw up fumbling around in the dark it'll give the cuben a split second more to relax before coming into contact with the tip of my trekking pole....
One thing about it - Judy is very responsive and open to suggestions. I really, really enjoy buying gear from companies like this.