Misconceptions in electric appliances

Last week, I came back to my 3 in 1 waffles/grill/croque-monsieur maker, that was in fully non-working condition for 2 years.
I barely made two sessions of waffles, 3 times did I had the chance to use the croque-monsieur functionality and once, and to the device dead, the grill function.
My first diagnostic, years ago was a problem with the juice coming from the meat, that could have short-circuited the device to its defective state.
OK, it was assembled with strange screws and I did not have enough motivation to go further.
Last week end, I was sleepy and was suddenly in the mood of understanding the internals of my dead 3 in 1 WGC-M.
Here I go, first, transform the strange screws in effective ones, thanks to a circular saw, the hardest part is not understanding, just opening it without destroying the whole case: apparently, manufacturers are using more engineers to design a device that you can only open by almost destroying it, than to conceive the way it operates: it is just like if you bought a pair of nice looking shoes and needed to get rid of one of your toes when you want to remove them!
I paid for the device, i want to be able to open it, removing a sticker voiding the warranty has never been a problem for me, but destroying the device to solely reach its internal parts does not sound very normal to me.
The more expensive and well designed a device is, the more serviceable it is too!
That said, I managed to open the device, tested the thermostat, and after opening the full shell, I found a nasty component: a thermofuse!
What is it: a 10A fuse, that mold if there is a short-cut and also if it is too warm. It should have melt if the thermostat was not working anymore or a stupid guy just heated this side with a lighter, the problem is that the thermostat was on the bottom side, while the thermofuse was on the upper one, so with some meat, the bottom gets cold, and the thermostat just rises the temperature of both sides while the upper one may be further of the meat, and then becomes hotter than the normal usage.
A thermostat on one side and a thermofuse on the other, nice try, but with this kind of engineering the device is a one time grill since a thermofuse turn the complete device out of order for good.
I fixed it just by removing the thermofuse, as a quick workaround, my next tweak will be to add a second thermostat to the upper part, and have 2 independent plates for a more environmentally friendly device, and also had a thermofuse on each side, with a higher temperature on the upper side. That should be good enough and fairly inexpensive customization.
The only problem is the overall design of this SBIHTOTWGC-M (Sorry But I Had To Open The WGC-M)!
May I now eat my Waffles?