Is that a residential fridge versus an RV two way? I have never had an RV fridge that was easy to get out. In fact I had one in an Airstream that we had to take a sawzall and wrecking bar to get it out.
Yes the fridge should be secured, some are secured better than others. If they strip the screws on the hold downs all bets are off. From my experience they use torque drivers with only one setting on them...STRIP.
A few weekends ago I was helping a friend drill and replace nearly 100 screws on the bottom trim of his slideouts because nearly every one was stripped. Some we could drill and used oversized screws other the heads were sheared off, so we moved over drilled a new hole and caulked the old one. This was on a $100K toy hauler.
There is little to no quality control in the RV industry and until people refuse to buy there probably won't be.