Whatever that means doesn't take away from the fact that he said he would be happy just to avoid relegation. Despite saying "we'll let everyone else tell everyone what they're going to do" he also says that he expects we'll win more games than we'll lose - which, of course, is telling everyone else what he thinks we're going to do.
So he thinks we will win more than we will lose (so presumably that's top six again) but he will still be happy if we just avoid relegation. I'm sure he does have higher ambitions for the club but his words don't exactly inspire confidence.
Ictchris makes a good point about small changes having a big impact on league position and therefore it would be foolish to make any more specific predictions, but surely nobody at the club will be happy if we just avoid relegation - relieved, maybe but surely not happy. I would have thought the line should be that we have been top six for the last 2 seasons and will be looking to build on that. At the same time he should be acknowledging the progress other clubs like Aberdeen and Dundee Utd in particular are making which will make the league very competetive. That would demonstrate ambition whilst playing down expectations.
I remember watching an interview during half time of Dundee United last March on BBC Alba and they were interviewing Richie Foran. Richie said "If we don't achieve Top Six next year then it would be considered a failure"
I'm sure Yogi is aware of the expectation to achieve a top six finish and he will give it his best shot as will the players.