Seems they have been produced with different tolerances - when mine is closed I do not have a large gap at the bottom like you do (ie I cant push anything into the side to open it). It closes quite firm and flush. However, yours seems to sit nicer on the hinge than mine.
I have two of the side doors and neither sit as nice on the hinge as yours, but once closed they close quite flush.
Either way, it does the job, and once closed allows easy access to the charging port