A link to her statement.
https://dailyhodl.com/2018/11/09/imf-chief-crypto-should-not-be-dismissed-can-benefit-the-public-with-fast-and-cheaper-transactions/
I think that's a fair judgment on things right now. There has been plenty of people out there that have either claimed that bitcoin is not going to survive, or is a ponzi scheme/pyramid scheme, etc. You name it. These people I think simply don't understand what bitcoin brings to the table, and its decentralized nature.
However, even though the IMF article showed some pretty positive stuff about crypto, it's not going to be necessarily the case on a national level where legislation and regulation is actually made.
It's still up to the governments to decide whether they would like to ban crypto (even though that would be a completely stupid idea due to the impossible task of enforcing it) or not, and what regulations they want to put in. The IMF also has not made clear whether the "crypto assets" they support are decentralized, or issued by governments. That part of it is still vague and up to interpretation.