It is unfortunate that your experience was not pleasant. But, I believe you must have been mistaken. I know how the Lasagna and all other pastas are made. The Lasagna is different than the other pastas in that the noodle part of it is actually shipped frozen to the stores in its "ready to cook" form. All Pizza Hut does is place the noodle/cheese bricks into the pans and places the sauce (meaty marinara) on top then put it through the oven. There is simply no way that a cook could have missed a single layer noodle brick.
I do not disagree that beuying a frozen Stofers would be a better deal, but obviously it costs more because the customer does not wish to spend two hours cooking. If you don't like the product, there are at least a dozen other similar frozen products that you could purchase instead.