The "already" reaction to a preferred stock price that's 2x the common stock price is misplaced. Preferred stock is always higher priced than common and that is not an unusual ratio for a late stage company.
This. Generally strike price for common stock at startups is around 1/3 of the price of preferred stock (the "latest valuation"). Telling you this is anything other than standard practice is just lying to you to get you excited about the "great deal".