New 2 Piece heat deflector

My wife recently got me a 2 piece heat deflector and I noticed that the tab to pull the trap door off is different than all the ones I've seen online so far; instead of a moving metal loop, it's a welded on metal tab. I was just curious as to the reason for the change. This 2 piece seems much heavier duty than the one piece that comes with the YS-640.