The thing is... Currently there aren't many other low priced 2nd rowers available. TLT might change that, but until then Sironen has earned a Reserve spot on my team. At the end of the 2015 season he was averaging 40+ when playing 80mins. Last season he didn't have much game time and averaged 30+ in the 80 Min games he did get.
If the said improvement of his attitude will get him back to his 40+ form, he will definitely be a good fantasy buy.