My take away from this is to have a very hard WIFI password. Since you do not access it often, it can be really complex, and can include special characters and both upper and lower case alphabetic characters as well as numbers and symbols. Don’t use anything that’s in a dictionary. By doing this, you can create a password that would take geological ages to crack by brute force. So regardless if a malicious actor can clone your WPA2 protected Router, he still has to hack your passwords by brute force, trying every possible password until he hits the right one. . .
And by all means, write it down and save it in a secure location! There are times when one day I wake up and for the life of me I can't remember the exact password, despite having used it for many months. Getting senile I guess. Now I make sure the tips I leave for myself are easily translated to my passwords (with the many special mix of characters and symbols). I still don't write down the exact string of characters, just tips to translate, even though secured in safes - I'm a security freak.
That's fine ... but my home is in a remote rural area, in a clearing a half-mile from anywhere somebody could set up without being seen from the house. I don't even bother with WPA2 at home. :-)
At work it's a very different story, of course. Your good advice applies there quite nicely.
From the original Krackattacks article:
Should I change my Wi-Fi password?
Changing the password of your Wi-Fi network does not prevent (or mitigate) the attack.