This is the most likely scenario for me. Galaxy 1 will handle the pointer via the touchscreen in handheld mode, which works because there aren't any sections that require analog movement and pointer controls in that game. Galaxy 2's Yoshi sections require both controls to work in unison. I could see them mapping the pointer to the right stick with some form of sticky aim or lock-on to get it working, but that sounds like a less than ideal scenario on top of being more work. I could see them releasing Galaxy 2 as DLC that doesn't work on the Lite/handheld mode or they could implement some sort of control as mentioned. Either way, it's not as straight forward as with SMG1.For Galaxy 2, I wonder if the controls for Yoshi didn't work well enough in handheld mode without proper pointer functionality. It's one thing collecting star bits but accurate timing when platforming is another.