how would i expect to know about them;
same way i get to know about anything in the industry i have worked in for 30 years.
your quite right about statistics but most twin pilots i have spoken to that are ppls have very misunderstood expectations of single engine performance.
i base some of my theory on some advice an ex air force jet pilot and very experienced exec prop jet and piston examiner gave me one day.
why have a higher miinima for a single engine app than an all engine app. the last thing in the world you want to do is do a se go around in a perf c twin, i totally agree.
the one difference i found between the pro flyng of twins in the charter world and the ppl flying of twins is that most pros had a very sceptical disbelief in se performance. whereas most ppl's really believed that a twin with an engine failure was just raring to go, not a problem, just the same as training.
ask yourselves how many ppl twin instructors actually show closing the live engine throttle and landing on the remaining runway as an option.
a suprise engine failure on take off or a low level go around on one engine is beyond the capabilities of most ppls in all but the ideal of conditions, thats my theory.