Well, two things about that season:
1) Nurk got hurt and in the playoffs Vonleh and Leonard were like our only healthy bigs. Much like this current team if healthy they would've been a team no one wanted to play in the playoffs. In fact the one game Nurk played in that series on one leg showed how much different they'd be if he was playing.
2) Unlike that season, there isn't a team outside of maybe the Clippers that the Blazers couldn't beat in the playoffs. So if the Blazers are playing great with a somewhat healthy roster there's no reason to believe they can't go on a run.