This is heartbreaking to watch. There came SO close! The landing was nailed, despite 15 to 20 foot seas. The engines shut down, the booster was upright… then a landing leg collapsed.
Considering the early stage of the development of booster flybacks, the 1 for 4 record (0 for 3 at sea) is actually quite impressive. All of the attempts have been dead on target, an amazing feat in itself. Blue Origin is 1 for 1 with a much smaller booster returning from a less challenging flight, but still an impressive accomplishment.
Each failure is a learning experience. I doubt, despite the naysayers, that it will not be long before both SpaceX and Blue Origin will be leaders in making space more affordable.