Hello dear Migipedia Community

My question is as follows:

Risotto Milanese with saffron, which is clearly declared as vegetarian on the Migros website, appears to contain original Parmigiano Reggiano. However, as far as I know, calf stomach rennet from dead animals is used to make Parmesan. I am aware that the animals are not additionally killed for the production of rennet, but I think that if products from dead animals are used, the product should not be declared as vegetarian.

What do you think?