Are we projecting that one day these cycles will be longer than the 4-year halving event?

I think that is exactly what the data could be suggesting, though like you said it's too early to make too many firm conclusions. This would actually line up more along the lines of the efficient market hypothesis as well. As the markets grow more "sophisticated" these parabolic runs will happen less and less as future information gets priced in quicker and quicker.

No data is perfect but this is all we have to work with. It may be wildly inaccurate or it may continue to play out in a similar fashion. It doesn't make sense to base your entire investment thesis on these patterns continuing to play out, but they might so they are important to watch, at the very least.