Well, there is a slight difference today; the theory has changed from 70-80% now looks like we dump only around 50% to 60% compared to previous years, but remember why BTC prices dropped so hard at the time? We are in a pandemic when Bitcoin and altcoins fall that low.
I believe the cycle still the same but with slight differences; it's not totally the exact same scenario, but still the price movement is still the same as before. There are just many things added in this new era, including the ETFs so I believe the pervious cycle will still repeat but with slight differences.
There is no "theory" that says that it changed from an "obligated" 70-80 to 50-60%.
That's not a theory, but simply describes both past and current observations.
Pretty much all parameters were violated during the current cycle: Pi cycle top, MVRV Z-Score, Puell multiple, Stock to flow, even powerlaw (albeit briefly).
In addition, ATH occurred before the halving.
All what remains is a silly adherence to an exact timing (which is also shifting a bit), which I am 90% sure would be front run this time, even if the cycles continue in some form, which is 50:50 in my opinion.
To conclude: Bitcoin has been not an exciting to own asset since about 2021 and being exciting to own is what matters to at least 90% of its owners.
Imho, bitcoin would be better without the cycles, but I am not sure if could follow gold's graph (with it's long basing and sharp moves) since it is on the predictable halving trajectory.