According to the football411.com website, the host nation were dumped out of this year's continental showpiece at the weekend after going down to Mali 3-1 in the penalty shoot-out after 120 minutes had ended 1-1.
Orlando Pirates defender Sangweni, though, believes South Africa showed plenty of determination throughout the tournament, and hopes their showing can prove a catalyst for a new era for the team.
"We obviously wanted to go as far as the final but it was always going to be tough," the centre-back told Pirates' official website.
"We were up against stiff competition but despite that we were able to hold our own. Losing on penalties can happen to any team, that's why I believe we shouldn't be too hard on ourselves.
"If we focus on the positives, I believe this moment can be the turning point for the national team."
Sangweni was also full of praise for the South African public, which gave their full backing to the side from the very first match of the competition.
"The support we had throughout the competition was amazing. In fact, it (the support) grew with every match we played which only means that the nation was beginning and probably still believing that we are on the right track," he enthused.
Sangweni knows Bafana will now need to put their continental heartbreak behind them and shift their focus to the 2014 World Cup qualifier.
He added: "Now we have to keep things together and work hard to get to Brazil in 2014 - we have a tough outing to Addis Ababa (Ethiopia) and we have to prepare very well for it. Let us just hope that we get a great run in these World Cup qualifiers."