I don't see that in my version.
I don't know much about SQL, but I successfully changed my password via phpMyAdmin by doing this:
In phpMyAdmin home page, click on DB name.
Click on the SQL tab.
In the large textarea, type (with words in red altered to suit, as shown below):
GRANT ALL PRIVILEGES ON dbname.* TO username@localhost IDENTIFIED BY 'password' WITH GRANT OPTION
dbname = the data base name
username = the username you have chosen
password = the password you want to use
As I say, this worked nicely while I was working on a local installation—but I didn't have any critacal data I couldn't afford to lose. It might be worth googling a bit to get a second opinion, or wait for more replies.