If not longer. Here is just one example out of tens of thousands of supercaps that are available at Digikey and every other distributor.
I remember that first proposals to use supercaps as a battery replacement started at least 10 years ago. Not many are in use today. They have issues. For example, batteries tend to produce more or less stable voltage until they reach a certain discharge level. Capacitors don't do that, so you have to have wide input range switching regulators - and their range has to be wider than for Li-Ion batteries because if you want to take all the energy then you have to take voltages all the way down to zero.
As usual these stupid reporters don’t tell us anything. Did the girl come up with an original idea that advances the state of art? Who know?
Another problem is quick discharge rates can lead to heat/explosions. Or one helluva jolt from a small package. Don’t put your tongue on one.