I'm surprised they didn't start using a strip of heavier plastic in the bottom seal of the bag to complete the illusion.
As long as we keep buying everything, the companies will keep short changing us because we act like we don't care.
We act like we don't care because half the time we don't even know they are doing it. They do it quietly and sneakily and hope we won't notice, and a lot of times we don't until it's pointed out. Keeping the price the same adds to the illusion that nothing has changed.