From your own link:
> A virtual SIM is a mobile phone number provided by a mobile network operator that does not require a SIM card to connect phone calls to a user's mobile phone.
https://en.wikipedia.org/wiki/SIM_card#Other_variants
This isn't about Apple becoming an MVNO, this is about Apple somehow controlling the process of configuring your phone because you no longer have the option to choose a SIM card and insert it yourself.