According to https://blog.whatsapp.com/10000618/end-to-end-encryption, they are. Not sure who is wrong or lying. Or perhaps the"latest version" of WhatsApp will be prohibited.
Someone is obviously in the wrong here, have doubts whatsapp would ruin their business for a single country.
Either way seems pretty hard without direct help from whatsapp.
> While the metadata is encrypted during transit, phone numbers, timestamps, connection duration, connection frequency, as well as user location are being stored on the company’s servers [0]