This is garbage gatekeeping, and it misses the fact that entrepreneurship is usually a journey of learning as much as a financial journey. Look closely at bios of home-run entrepreneurs and you will frequently see a smaller win or loss before the exit for which they become known. What is the point of denigrating people for not having sold a SaaS as successfully as you have?

I wish them hearty congratulations on the sale and good luck with the next adventure.