Your thoughts about pirple.com ? Is it worth it ?

this is my first actual rant. I am trying to learn es6 right now and have encountered switch statements for the first time. after a 26 minute video explaining how to do switch statements (which is literally just the same kind of information on them that you can get from w3 or mdn I am given a large task with no practice to create a switch function that hold four values two values containing positive integers and two values accepting strings. then I have to be able to pass days and minutes through it.
an example solution after input would be:
addTime(1,"hour",3,"minutes")
I feel like this is too complicated with 26 minutes of information and no practice exercises to prepare for that.
-end rant