Not in my experience. Not sure if you have played Hackmaster or not, but the 3-action economy is essentially a watered down version of the system they use and i found it to be less of an impact than dis/advantage in actual play (and the Hackmaster system is even more dynamic than the PF2e system). Perhaps it seems super innovative if you haven't used something like it before, but for me it is not a revelation. That being said, that could be a reason dis/advantage is for me, as I hadn't used something like it before. Also, dis/advantage is not used in a vacuum in 5e, it is important for BA - they go hand-in-hand.
Basically it comes down to this: 3-action economy wasn't new to me, but dis/advantage was, so it is only natural which one had more of an impact on me. Our viewpoints on which is more important is biased by our experience, there is not a "correct" answer. It is subjective.
What I like about both concepts is they give rise to more possibilities to stretch them. I have already mentioned the 6-action economy, but you could expand dis/adv as well.
EDIT: Also, what is really innovative is not the 3-action economy, but that they paired it with the general removal of OA. That was the genius move that makes it interesting.