The rumours of my death have been greatly exaggerated

Hello!

I came across this sentence in an article, a part of which I have quoted below.

"Finally, a word of advice for all other economic policy makers in New Delhi. Keep your counsel on inflationary expectations to yourself unless you are sure about what you are saying. Much like the rumours about Mark Twain’s death, official forecasts about the death of inflation have been vastly exaggerated, to say the least, and have hurt the credibility of macroeconomic authorities. While battling inflationary expectations, hurtful action is better than harmless talk."

I googled and found that this quote is from Mark Twain himself. I want to know whether the meaning here is exaggeration about something that hasn't happened.

Thanks