What it actually needs is a little motor to close itself. If it knows I left it open it should be capable to close itself instead of crying like a useless piece of junk.

Mine is so "smart" that it doesn't properly detect that it's open with a cm or so gap. At least it beeped furiously when it detected that the freezer section had a dangerously high temperature half a day later.

But how else will you know you need to make an unnecessary purchase?!