There are so many videos out there on the subject that you can learn the benefits from better players than me. From my perspective, anything that sounds good and breaks us out of our boxy lead playing is a good thing.
One of the things that I like about the Pentatonic Highway is that you mix two and three notes per string patterns while connecting the various boxes as you traverse the fretboard. Note: We have discussed the Pentatonic Highway here and in the old forum: Scale Diagrams A min Pentatonic - #19 by CT
And really driven home here: 3+2 Diagonal Pentatonics (Guitar Lessons) @EffectiveMusicPractice - YouTube
It’s a good thing to learn, nothing lost in expanding your knowledge, and something to put in your lead playing tool kit. Take in some of the Youtube lessons and let us know how it goes for you.
EDIT: I should note that the Justin courseware suggests spending a fair amount of time on improvisation (the actual percentage is not at my fingertips). I know that learning songs is the mantra, and that tends to point to Lick Library and other rote types of playing as well, but if you’re not doing some freewheeling on the instrument you are missing a lot of fun and a great way to express yourself on guitar.