You are reading entirely too much into an incident. In early 1994, a MIDEX -930 blew a reverser and lost an engine at V1 departing out of Stapleton. 3 minutes later the aircraft was able to land safely (albeit veering off the runway). During the subsequent 3 years, MIDEX dramatically increased its fleet size with numerous DC-930s--so an incident such as the one you are reporting will not have any effect.
Before I left the company last month, there was a huge rumor that Hoeksema had gone out and inked a deal for the 717. They were just waiting for the best time to make the announcement.
However, the issue has come up about the long term viability of the 717 and its stretch variant. While the 717 is the perfect replacement for the 10s/30s, without a replacement for the MD80s, the company could be left holding the bag. Expensive lessons were learned with the Skyway fiasco over the 428, and now they are looking to bring in the Jungle Jet.
A 320 was brought in last month to the MIDEX showroom lot with the 2*3 configuration. A focus group of frequent fliers was given a grip and grin/dog and pony session to find out how they liked the dreaded middle seat. That middle seat is going to be a risk, believe it or not, but the company will only fill the seat once they book above 80% and will fold down into a desk--which is a pretty good deal, if you ask me. The middle seat didn't turn off people like you might think.
The 318/319/320 could be the answer for long term growth. A lot of Jetways will have to be re-done as they won't reach right now. Once the announcement is made, the new planes will show up in 2003 if it's the airbus and sooner if the 717.
Interestingly, there has also been a lot of talk on the 717/MD80 being around. Before I left, MIDEX was supposedly going to purchase full motion sims and become an outsource for maintenance and training on the -9/md-80 much like DL has done with the L1011. And there could be some 717s showing up on the market (on the cheap) if TWA/AA goes through.
At any rate, it will be interesting to see what the decision is next month. Based on what my old friends are telling me, the Airbus has the inside track.