Wrestling will survive in a multi-class system or in a single class system.
The question is better versus best. Class wrestling seems to help develop depth this seems fairly quantifiable considering 1) surrounding states such as Illinois, Michigan, Ohio, Minnesota, Iowa, Pennsylvania, and New York are historically considered better wrestling states than Indiana; 2) it exposes more kids to college coaches, giving more student-athletes the opportunity to compete in college, gain experience, earn a degree and go back to their community and contribute to their local wrestling community.
If wrestling wants to grow in numbers its about promotion. Does specializing in a sport hurt the overall sport? I think this is to be determined.
Indiana is battling against history. However, wrestle-backs throughout the state tournament would help improve an already great state tournament dramatically (no intention to open pandoras box with this sentence). It is ingrained in the fan base that they want a single class with "one true state champion." However, none of our systems are set up that way look at the NCAA. There are division I, II, III national champions as well as NAIA national champions. Depending on the size of the school even at the collegiate level they are afforded more resources and opportunities. And I highly doubt Mr. LeFever the four time national champion doesn't consider himself a "true national champion."
The reality in life is not everyone can be doctors, or lawyers, or politicians, or professional athletes but all can optimize their potential given their specific skill set and exceed their perceived limitations. Wrestling is a sport that helps promote mental, physical, and emotional toughness and if classing the sport gives more individuals opportunities to further develop those skill sets then it should be considered.
Also, success leads to growth. People love being part of a successful movement. If some of the smaller schools start to have more success eventually the community and students will get behind them because it is exciting to be part of a winning tradition or a foundation that leads to a winning tradition.
One thing that I will say is special about this message board and Indiana wrestling fans in general is that they are passionate and truly want to grow the sport. As someone who has lived in Indiana, Arizona, and now Texas - I wish the great state of Texas had a community as passionate about yours as growing the sport.