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So, listening to what this guy says about bitcoin is like giving a damn on a vegan's review about Pappy’s Smokehouse.
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Keeping your savings in something safe means in case of an emergency you can easily withdraw the same amount and use this to cover your needs.
It's not safe heaven if you have to wait 5 years to (maybe) get your funds back while you can't pay up your mortgage.
I have a book from the '80ies, it's about preparing for the situation when all hell breaks loose (like civil war, world war, local natural disaster, etc...)
In the 80ies, the book advised to buy some little thin gold rings at the jeweler regularly (when the situation is normal, not when the disaster happened already) and you'll be able to trade them for food and water when you are in a need...
I'm afraid that despite of 40 years has passed, nothing has changed since...
In a case of an above mentioned situation, fiat will lose it's value in a really short time.
I don't really think that if someone will convert all of his/her fiat to bitcoin in the very last moment, then he/she will be safe and will be able to solve all the situation where it's about trading food for something valuable thing...
If you only expect just another credit crunch like in 2008, bitcoin could be a kind of safe heaven, but if something worse happens, bitcoin won't help at all.
If a new credit crunch happens, it will be bad for the banks (and for the people of course), but the infrastructure in the countries will remain untouched (mostly) and the internet connection will still work (which is essential for bitcoin trading/transferring). In this situation, bitcoin could be a safe heaven for those who are not fighting for living and have savings in the bank, they just need to move their savings to bitcoin and wait for a few years as above stompix has mentioned...
But if something worse happens, the infrastructure (first, the communication network) will suffer and bitcoin won't be available for the people... Of course, if you can wait for a few years, or you can get to another country where you can trade your bitcoins, you'll be fine in the end, but this presumes that you haven't starved to death because you haven't got any other valuables but bitcoin...
So bitcoin could be a kind of safe heaven but not for everyone/everywhere...