I think Cessna is really satisfied with their program and their product, as well as how sales are going for the Mustang. Hundreds of real customers seem to be, too.
But I guess these idiots at Cessna could have priced the plane to sell 500 a year... but there risk in that decision. A lot of risk.
They might have developed their own avionics, as well... but why? There's risk in that decision.
Perhaps they could have forayed into a novel construction method... but there's risk in that decision, too.
Perhaps they could have designed plane around a tiny NASA experimental engine, and launched in 1998? There's risk in that decision, too.
Maybe you should re-look at how you characterize the Mustang, and revisit the $1.x billion house of cards you call a jet program at e-clips?
Everything e-clips has done was easily copied by a major company, IF it made sense.
Cessna and Textron have their BRANDS to consider. Guess what the Eclipse BRAND has come to mean... see the characterization of the in the Award article. That's what their penchant for risk has gotten them. Nothing anyone in aviation, or at Cessna/Textron would ever stand for. In fact, the entire VLJ segment is being colored a sick shade of BROWN, due to Eclipse.
Cessna was smart a year or so ago to distinguish the Mustang from the VLJ moniker, and call it the entry level Citation.