The worst example might be windows in the doors, so you can look into them. Except you put stuff on the door shelf and block the view or you can't really see inside all too well. Plus now you have introduce thermal issues.
How long are these manufacturers promising to support the hardware? If the fridge is internet-connected and support ends, at what point is that a security risk? This generally applies to most purchases these days...
I was looking in my garage and I found a cassette player my grandad gave me that still works. When I look around shops and at many things I own I see planned obsolescence everywhere. Personally, I find it really demoralizing.
Only works for a neatly organized fridge. The way my kids cram everything into the fridge makes this feature worthless.