It's not a regression every flight. The last flight was pretty successful. You are acting as is this isn't an unprecedented launch vehicle. Even if they lost 20 in a row, as long as they get there that's all that matters. Space X has shown how well things work once they get something working.

They have yet to re-light an engine in space, which has been a mission milestone several times now. Either the ship explodes in hot staging, orbit, or re-entry (and now, static testing) and hasn't made it to the controlled spot in the ocean in quite some time.