Was WGN Radio the only curse the Chicago Cubs had?

The last time during the Chicago Cubs run that they made to the playoffs and won a game and a series was 2003, which was 11 years before the Chicago Cubs pulled off what everybody would have thought was impossible for them to do, and leave WGN Radio as their flagship station. And in the last 2 post seasons the they made it to the playoffs while on WGN Radio they were swept out of the playoffs which would be 2007 and 2008. Which also meant the last 2 playoff seasons the Chicago Cubs would make it in Ron Santo's life, as Ron Santo passed away win December of 2010. And they never made it to the playoffs again, or had another winning season again 2015, in their first and only season on WBBM 780, in which they made it to to the playoffs as wild cart team, and won the pointless wildcard game to actually play in the first round against the St. Louis Cardinals which they won the series, only to be swept by the New York Mets in the NLCS. Which goes to this year the first year on WMVP 670 the Score, of which they win the diversion and win more then 100 games, and this year all the way to the World Series. If somebody had told you last October they would make it to the World Series this year would you have believed him or her and why or why not? I know they had talked about the whole so called Billy Goat curse, but do you think WGN Radio was the only curse the Chicago Cubs ever had and why?