Bitcoin is indeed a safe heaven in my opinion when you take account the performance of Bitcoin and other asset in the last couples of years and differciate them, BTC have had an astonishing performance when compared with other asset like Gold, Stocks, bonds. Until people begin to realize the value of BTC and its problem solving and stop pricing it with the dollar, that's when I think they're going to fully realize that BTC is a safe heaven.
There is mixed opinion about it. Some people who are long term investors agree that bitcoin is a save heaven but there are many others who think bitcoin is too much volatile to be classified as a save heaven.