For late-stage startups like this, RSUs are common instead of options. Because stock is issued rather than purchased (like an option), I don't think this is dishonest. (If a company valuation stays flat, stock options are worthless - but RSUs have value). Either way: A thing to keep an eye out for is startups that describe the compensation value of stock using the preferred stock price, but then issue you common stoc…
If anything, RSU compensation is worse than options because of the tax implications. With options you have the option of paying the tax before the appreciation of the equity. With RSUs, you pay at liquidity.
Very few non-founders do it, because it means you could end up paying tax (with the election) on shares that will never vest for you, but you do have the option to do so.