any type of clamp can fail. imo the biggest thing is using the correct style clamp for the application. you cannot use a normal worm clamp on silicone hose with out the risk of it cutting into the hose. that's why they make clamps with a extended band on the inside to shield the hose from the worm screw area. also intended operating psi will dictate what should be used. take boost pipes for example. on a cat 3500 series engine it uses 4 turbos feeding into 2 6" pipes. they use silicone connections with double ct clamps per side. and with 40lb of boost a single clamp would not hold very long before the hose pulled out from under the clamp. also keep in mind thermal expansion/contraction. t bolt clamps work very good but the ones with out the tension spring will not give and you could potentially split a hose once the component comes up to operating temp.