It’s difficult to talk about in the context of a controlled, apples-to-apples experiment (with regard to a diet containing protein powders vs. one without protein powders but with lots of organ meats).
For one thing, whether you’d been eating organ meats, protein powders or fish penis (Do fish even have dongs?), you said you’d dropped your daily protein intake from 300 grams to 180 grams. Well, that’s sure to make some sort of difference in and of itself. If you had made sure to keep your protein intake at 300g/day, just doing it without protein powders (and largely through organ meats), then you might have had a more fair comparison to make.
Secondly, even if you had kept your protein-powder-free daily protein intake at 300g/day, total daily caloric intake, at the very least, should be kept constant in order to have a fair comparison. And whole meats (organ meats, muscle meats, what have you) of course contain lots more calories due to their fat content than protein powders do. So if you could have kept your daily protein intake AND your daily caloric intake the same as when you were using protein powders (which might very well be impossible to do in reality – not sure), then we’d at least be in the ballpark of a pretty fair, controlled experiment.
Additionally however, whether you want to talk about elusive and mysterious “synergistic ingredients” or not, there are certain things that the meat diet (whether organ or muscle meat) contains that the protein powders don’t. (Protein powders might have slightly better amino acid profiles and/or absorption rates, but putting that aside . . . ) Meats contain fats, both good and bad, but some of those fats might have some very positive effects. (And some might have some negative affects in very high amounts).
ALSO – and I think this might be a key point of interest – that meat contains cholesterol. And cholesterol is essentially a building block of testosterone, so eating lots and lots of quality (and cholesterol-containing) meats everyday, organ or otherwise, might have enough of an effect on T levels to effect body composition, strength and energy levels (and maybe healing rates) to a noticeable degree vs. if you just got that similar amount of protein from protein powders and didn’t get all that extra cholesterol.
I know this is of no real conclusive use to anyone, but those are just some things to think about off the top of my oversized head.