Keep in mind that there have been 4,000 A320s and 150 or so 717s so 717 would likely not crash 😉. Just thought for food (Yes I switched the phrase around for a reason).
Now that said, every pilot has the adequate knowledge of flying the plane. Flying a 717 is harder than an A320 so even though the planes may be different skill levels, the pilots are equally qualified when they take to the skies in their first revenue flight.
If that didn’t make sense, then here’s an analogy. We got two Greco-Roman pedestals that symbolize the advanced-ness of each aircraft. The 717 is above the A320. When both pilots are deemed fit to fly, they must have met the 1,000 point mark (This is a HYPOTHETICAL). As time goes on, one will accumulate more points faster than the other.
See what I mean?
Dang this was a long tangent.
Long live the DC-9!