Running, pushing a wheelchair?

Data and technology to track said data drives my fitness goals as much as anything. I've toyed with the more automatic forms of electronic fitness trackers like phone pedometer apps. While not the most accurate, Google Fit won out for its style and simple interface.  

The advantage of Google Fit lies in its claim to automatically determine if you are walking, running, or riding a bike. No other app does this to my knowledge. It usually works pretty well, with the exception of missing any movements when I ride with my phone in my pannier.

Then things got wacky. I synced Google Fit with myfitnesspal, a food tracker. It seemed simple enough, and convenient to have the 2 pair. However, neither app imported the other's info with any accuracy. Google fit would seemingly randomly read calories, and myfitnesspal would import activities that in no way matched what Google Fit tracked. The funniest import was myfitnesspal translated a normal day (about 95 minutes of bike riding and some odd 40 minutes of walking) to "4 minutes of running, pushing a wheelchair". What is that? Do they have a division for pushing a stroller too? How did the app turn biking into running with a wheelchair? How would it even discern that? Does it consider the vast differences in effort between pushing an empty wheelchair and one with an average, or a heavyset person sitting in it? And lastly, who runs while pushing wheelchairs? Ahh! Questions abound! This hilarity of this recording actually encouraged me to stop syncing Google Fit and myfitnesspal, and I eventually stopped using myfitnesspal all together.