There might be some truth to that. I busted my ass 10-12 years ago to get abs and really my abs were better at 178 than they were at 168 (sitting at about 200 now). and these days I don't really believe in a lot of ab work because any time I lean up a bit they show just fine. but i did a TON of ab volume and lat volume for years since I did a ton of xfit comps. so it was always pull-ups, muscle ups, pulling, deadlifts, cleans, snatch etc. and then the abs were destroyed on the daily with sit ups, med ball twists, russian twists, toes to bar etc. to this day I still believe that the high volume to failure on a regular basis built me more hypertrophy than anything. my chest measurement was the same size then at 20lbs lighter than it is now.
I don't think this photo is a fair indicator of where your lats are, you just need to learn how to flare them. Abs might also just need a little practice because you are lean AF right now and looking awesome.
below is a pic from my skinny boi days on how I tried to figure out where my back was when I was doing a selfie solo lol so just food for thought in case you wanna try that angle. Another thing I have done recently is actually set my camera up in video mode then take some poses in the video... from there you can just pause the video at particular poses and take screen shots.
the problem with holding the camera like this is it was easy to get half my lats and arms / delts flexed but not the other half LOL
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you're looking hella good dude, keep up the momentum