It does provide a relationship between energy and matter, but importantly it does not say that they’re equivalent. What’s bizarre about this new equation for kinetic energy is that even when the velocity is zero, the energy is still positive. Up to about 40% of light speed (mach 350,000), is a really good approximation of Einstein’s kinetic energy equation, . They’ll probably say “0.5 mega-electronvolts” which is a unit of energy (the kinetic energy of a single unit of charge accelerated by 500,000 volts). For those of us unbothered by creation and annihilation, the fact that rest-mass is a term included among many different energy terms is pretty unimportant.