Does very black soot/smut in the tailpipes indicate anything wrong with engine? on 2011 Suzuki Kizashi

I just purchased a 2011 Suzuki Kizashi with about 14,750 miles on it. I happened to notice that the tailpipes are very black on the inside. However, I didn't notice it until after the sale. I was taught that this could be symptomatic of future engine problems. Is there cause for concern/worry?

Asked by for the 2011 Suzuki Kizashi
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