A brief note on what you're looking at here.
Over the last sixty years gymnastics has seen massive changes in equipment, and some of the most drastic changes have been on the vault. The goal now is not so much as to get over the vault as it is to use it as a means to propel yourself off of it. Springboards have gotten more effective, and the new design of the vault (also called 'The Table) creates more surface area for a safer, springier vault.
Gymnastics has gotten more extreme, but that is largely due to more sophisticated apparatuses, a smaller focus on dance elements, and a greater emphasis on tumbling technique.