If you've ever hand washed yours you would've noticed how thin they are. The doors give you that beer can affect if you press a little to hard on them. The first time I washed mine I was like wtf these are paper thin! But as @Spence's bumper sticker pointed out, you have to shave weight somewhere.
I hand wash it three or four times a week lol....I am one of those OCD guys that spent 45 years in manufacturing and my expertise is measurement and inspection....In the bearing industry .001 is a foot. We measure down to millionths of an inch...So yes sir..I noticed all those flabby doors too. lol