I disagree with your interpretation of the goals and approaches of the franchise. They've been very clear about a couple of concepts:
1) They want to build a team that has durable quality, over an extended period of time, rather than a team that has strong "boom and bust" cycles. I think that's a good reading of the market and fan base. Consider how many hardcore fans on this board were bummed out because the Jets traded futures (picks / prospects) to try to go for a cup that last couple of seasons. Thread after thread on this board focuses on the draft and prospects, because fans want long-term success. I doubt that many Jets fans would want them to trade this year's #10 overall for a short-term solution to strengthen their team for the next couple of seasons, either.
2) There is a clear recognition that the Winnipeg market provides substantial constraints in the trade and free agent markets. Many potential trades that are discussed on this board are completely unrealistic because there is almost no chance that the player will consider waiving their trade protection to come to Winnipeg. When a relatively high profile player does agree to come to Winnipeg, there's great fanfare that he waived his NTC to come to Winnipeg, even if it's just for a playoff run (hello, Stastny). That leaves the Jets with a much narrower range of options for creating a consistent winner, relying more on draft and develop and trying to keep core players for reasonable contracts.
My interpretation is that the franchise / ownership concept around stability and "loyalty" is very much in response to meeting the above challenges. A rapid turnover of players, coaches and management is contrary to the concept of developing a consistently good team in an environment where many players don't want to stay long-term. So I see the stability and "loyalty" as a deliberate strategy to be able to combat some of the headwinds. Having players like Scheifele, Morrissey, Ehlers, Connor (and hopefully Laine) commit long-term to the Jets is built on developing a "team-first" culture, and a sense of commitment. That's a two-way street. Also, if you want a Head Coach that is willing to focus on developing young players and maintaining a strong commitment to the franchise by the key players, he has to approach coaching in a different way. For one, he needs to put aside "win at all costs" as a mentality in some seasons where the priority is youth development (like 2015/16 and 2016/17). Second, he might need to develop a strong relationship with the veteran leaders, since they are the ones that need to create a sense of loyalty to the Jets in the longer term. That's why an incendiary coach like Tortorella wouldn't work in this market - he would alienate players and make it much more difficult for the Jets to retain them, creating a revolving door for their prized young players that they've drafted and developed.
Clearly, the Jets have made mistakes in terms of player assessments, etc. But I don't think they are very wrong about their overall approach, and I certainly can't fault them for committing to loyalty and management stability. When I look around the NHL, coaching and management positions are filled by a revolving door of the same faces with new teams. Occasionally they succeed and become the shiny new object, and then they flame out and turn up somewhere else. I have yet to see a team put together a truly new and innovative management / coaching model that is reaping much superior results.