Perhaps I've misunderstood the point of adaptive charging, but from my perspective it's about preventing the phone from charging to full and then sitting there at 100% all night. Instead it limits charging to something like the 80% mark and then at just the right point before the alarm goes off / you unplug it in the morning, it charges the final 20%. My laptop does something similar - it will never charge past 90% unless I tell it to (and actually discharges the battery over a long period down to 60% before charging back up to 90%). It's all about prolonging the battery life, as being fully charged for longer periods isn't good for it.
I don't know the finer details of the physical charge controller, but I see no evidence of it doing any of the above.
Seems like this would be a good thing to have.