This is a sensationalist headline, and this is not a strong password length. Based on the information in the article, this is really equivalent to a "strong" 5-character password - not very secure.

It's not "30-character unbreakable cryptography", you can crack it in minutes on your phone or desktop.

Technical details:

The article actually says that each 'character' you learn is one of only 6 possibilties - for only 2.5 bits per character and total entropy of 38 bits.

To see how woefully little entropy this is, if you code, try writing a program that counts to 2^38 - or on a 32-bit system go through the 4.2bn possible values of an integer 64 times. That's how many possible keys there are in a 38-bit password. It really just takes minutes - certainly far less than the 45 minutes the article says it takes to learn this password!