It implies that now we can do detection experiments at higher frequencies (higher energy) which therefore means more precision than before. To probe things with higher precision normally means you need higher energy/frequency, but this experiment implies now we can detect at theoretically infinitely high frequencies? Something is off. There has to still be a dependency with frequency of light in any experiment. However I think Time itself is quantized (no I can't substantiate that), and therefore the Planc Time is the limit of the highest frequency measurable, so that frequency is the limiting factor for both energies and frequencies.