And that's your choice. Mars decided that they were going to limit serving sizes to 250 calories or less, and products shrank or were dropped in line with that.

This was a better idea than simply saying a single use package really contains more than one serving in it to look like the company was being responsible.

You choosing to eat more is just that, your choice. It has nothing to do with any company.

If the original larger bar contained more calories as well as higher quality ingredients requiring more time to digest, then the older bar may actually have been the healthier option.