Fuji
I do not trust Pistons too many moving parts to go wrong

I have had 3 failures 2 partial and 1 full in light twins.
If we are talking about light twins then i think you have to regard the second engine as "more" options.
The full failure happened on a nearly new continental engine at Grosse at at 200 feet on the climb out. Having sheared 3 rocker shafts it kept going albeit with much reduced power and a lot of vibration.
Following investigations found incorrect torquing of the shafts at manufacture and the whole unit was replaced with a new engine by continental within two weeks with an apology.
I could tell by the feel that if I pulled the engine and feathered it I would have gone down so elected to keep it going with one hand ready on the prop lever until I had some air under the aircraft and managed to level her into cruise flight. Then I shut it down and brought it back to a single engine landing.
It was the right call in that situation. As I said in a light twin the other engine gives you more options. More options means the option to make a mistake or make the right call.
Maybe I did not follow procedures but in that particular situation the correct procedures would have had me in the ground. Thank God I used my head and my instincts and not procedures.
Pace