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Apparently not, in 10 years. I measured again the oil pressure, it may reach 100psi when cold (5W40 full synthetic @15°C).
I assume the oil pump pulsing the oil through the oil cooler (when cold or @WOT) made the hose enlarging, then constricting in a cyclic fashion and that made the internal fluoro liner failing. Either the polyester fibers are elastic, or they failed. Whatever, these 4-ply silicone hoses should not fail and should be able to sustain 100psi if burst pressure is 200. Maybe the combination of pressure + hot oil is the culprit.
I decided to strengthen the pressure regulator valve (to the oil cooler of course) of the oil tree by adding 5 small washers b/w the piston and the spring. The result is the pressure builds up slower to the oil cooler now. The regulator valve looks like the one below except the piston has 2 small oil to lubricate the rear of the piston. and/or maybe to balance the pressure b/w the front and the rear of the piston. 
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