It's a great name. "G" matches the company, it's easy to say, it's a known word, it sounds good spoken, and the word itself has many subjective interpretations as to what it might mean (e.g. gemini = twins = you and AI).

Same reason that it's Alexa and not Amazon Assistant, Siri and not Apple Assistant, etc.

Google Pay/Android Pay/Google Wallet/Android Wallet/Pay Pay/Yap Yap should be the focus of our ire.