Well, with the Antec situation you had a combination of things going on.....
The Fuhjyyu caps were rated at 85°C, and would do what they're supposed to do at 85°C+, but for how long?
Antec chose to outfit these PSU's with very quiet, low CFM fans. So internal PSU temperatures were often 85°C+.
The thing that was never calculated was how long the product would last under these conditions. Of course, short term testing and correct data could have revealed this was bound to be a problem. For example: I'm sure Fuhjyyu had MTBF data for their 85°C caps at 85°C operating temperature. THAT MTBF should have been calculated into the PSU's MTBF and if Antec desired a longer use life, they should have increase FAN RPM's, at least at higher loads, to keep temperatures BELOW 85°C.