I'll guess that you never ran into the issue, in Version 16, of the images moving around or not staying in place like a lot of other users did. I didn't use that feature, but I know that a lot of users, on these GenForums had issues with the images moving around.
I don't know how you can say that Version 16 is much more flexible then 2010. You may be able to move it around, but, as I mentioned, it may not have stayed where it is. In 2010, at least, you know where it is going to stay.
The size of the image is done outside of Family Tree Maker with your normal photo editor.