I believe that. Yet, I think founders getting screwed over is largely orthogonal to the type of instrument used to fund companies in the early round. The scruples and sophistication of the parties involved play will tend to play a bigger role.

Among the asserted merits of SAFE's when the came into the YC ecosystem was that it removed some of the distraction that trying not to get screwed over created for founders at 'demo day' or earlier stage companies. At the time, an investor's willingness to use a SAFE might have had an inverse correlation to their willingness to take undue advantage of unsophisticated founders.