Stealing signals in high-level sports isn’t an unsportsmanlike gesture, IMO. It has existed for decades, and there are plenty of preventive measures a team can use. As I said, if it is done in real-time, or prior to the game, it’s fair game. If it’s done with the help of technology during the game, it should come with repercussions because that isn’t fair.
But what is fairness? I’d argue the entire premise of college football hasn’t been fair since before the 1950s. In professional sports every team is given the same opportunities, and while there may be advantages/disadvantages to basing your team in a certain city, the system surrounding the teams is fair for everyone. College sports are a completely story. Schools with vastly different curriculums, resources, support, etc. compete against each other not only on the field, but in recruiting. And those that do better on the field, tend to do better in recruiting. It’s a system designed for the rich to get richer. The system surrounding the teams is unfair, so how can the games be fair at all? Stealing signs is way down on the list of things affecting the outcome of games, and also things that should be considered “unfair.”