You are holding it the wrong way round. It is not a privacy registrar that forgot to publish its privacy policy. It is an ordinary Indian hosting company that also sells domains, and ordinary hosting companies in that market quote by email because most of their customers buy a bundle rather than a single name.
Look at the payment mix and it settles the question: cards, PayPal, bank wire, Bitcoin somewhere down the list. That is a mainstream shop with a crypto lane bolted on, not a crypto shop. The thirty-five thousand names figure is their own claim and it is plausible for a business of that shape.
Depends what you're running. If you want a cheap commercial registrar and you do not care who knows you own the name, it is fine and probably cheaper than the Icelandic shops. If the reason you are shopping in this section is that you do care, this is not the one and no amount of the word offshore on their site changes that.