At least the first, second, eighth and ninth launch attempts of this one failed in whole or in part due to engine failure.
Those first two with engine failures you mentioned were caused by contamination issues inside the vehicle, solved by adding filtration systems. Those last two were on the second stage so no comparison to the N1 with its massive numbers of engines and the ninth flight you mentioned wasn't even an engine failure.
I don't think the comparisons are very apt.
The parts are not what are failing. It's the overall system.