The pressure in your pressure cooker is only 15 psi which raises the boiling point of water to about 120°C, well bellow the temperature of a deep fryer at 175°C.
The temperature of undersea vents can easily reach temperatures of over 300°C, which I would argue is more like frying.
It's not the strength they were worried about, it was the temperature at which it weakend, which shouldn't have been a problem according the the information provided to the pilot.
I don't know the material data sheet was wrong or the person selling it to him was wrong or lying.
We don't and won't know, because they didn't try to identify it.
This was part "only" meant to funnel air into the engine, so I could see why he wouldn't think it would be a problem.
And I think it's more like the carbon fiber impregnated abs, than coated. I paraphrased the report, so that's on me.
I read through the report. The pilot believed it to be carbon fiber reinforced abs, which should have had a higher weakening temp than the stock fiberglass part. Apparently it didn't though.
They don't identify the actual material in the report.
I did some very rough estimates and found that the amount of aluminum entering the Earth's atmosphere each year is probably between 100 and 500 tons, which would be roughly comparable to the amount coming from these LEO comm sats like Starlink.
These are just super ballpark figures, but it's in the same order of magnitude. More research is definitely necessary.
Sou vide is different than boiling is different than pressure cooking.