The Bavarians made the decision to bring in the former Barcelona boss months before his predecessor led them to a historic treble.
The Bavarians parted company with the man who had led them to a historic treble last season, having already agreed to a deal with ex-Barcelona boss Guardiola.
The Catalan coach has been criticized in some quarters for his tactical tinkering this term, but Hoeness is enthused by what he has seen so far from Guardiola's Bayern and says that there is no point in constantly bringing up Heynckes given the German was always likely to step down.
"Jupp Heynckes has again confirmed to me that it was the right decision to end his coaching career, so I personally think that we have made a 100 percent right decision with Pep Guardiola," Hoeness told Sport1. "In Prague [in the UEFA Super Cup] we saw against Chelsea what the team is capable of doing under him, and I think that we still have a lot more fun to be had with him."
Hoeness acknowledged, though, that Bayern will still be hard pressed to emulate the treble success of last season.
"Getting to the top is one thing; to stay above everyone else for a long time is much more difficult," Hoeness said. "But that is the Herculean task which the club is now looking forward to facing."
Reigning champion Bayern currently sits second in the Bundesliga but can overhaul leaders Borussia Dortmund - temporarily at least - should it defeat Hannover at Allianz Arena on Saturday afternoon.