Why do my GE profile refrigerator inverters die every 5 years

The temp in my freezer and refrigerator went and stayed at 50. most links said the control panel. it was friday evening and couldn’t get the thee part by at least monday. in desperation, I called a serviceman who came saturday morning. he looked at the unit , felt around and diagnosed the inverter was bad. he replaced it and the machine works. I didn’t need the control panel and the money I saved for the panel went to the service charge, but at least, I didn’t sacrifice the time and food waiting for the panel. My concern and question is that the GE Profile was purchased in “09 and needed the inverter replaced in ‘15 and now in ‘20. My third inverter in 11 years. the first 2 lasted about 5 years each. What’s with the inverters? why do they go like that?