A contending team being elite in one category and average in another is actually pretty normal, that's the only reason I'm even making a case for the Pacers as contenders. The Pistons and Celtics were about average offensively but elite defensively. Bulls were average offensively.
Can they get through Miami? That's probably the more important question. I doubt it but I'm not one of those people that thinks Miami is the only team that can win the chip. I remember how close they were to getting knocked out TWICE last year. Blame injuries or whatever. I know Bron is a different guy right now but they showed weakness. People like to remember the playoffs like Miami steamrolled through the league - they were down the Indy and they were 1 game away from ending it all against Boston.
I don't know if Paul George is ready for that but he's been improving throughout the year. Granger coming back should ease the burden but PG has been really really good.