I originally developed Process Lasso because I needed it, and that is as true today as it was 15 years ago. ProBalance is as necessary as ever, as are other features. We have more cores than ever to manage, and the product is getting a lot better (v9 final coming approx Nov 15 btw).
For me, and honestly for you and all users, I always recommend installing Process Lasso. Even if you don't touch it further, at least it is there to handle worst-case scenarios that might otherwise force you to do a hard reset.
And, of course, a huge feature of Process Lasso is the automation, which you either use and need, or you don't. Similarly, that doesn't change with hardware.
If it were my Surface Book, I would install it, and can tell you that it's the appropriate and recommended thing to do. Process Lasso is lean and mean, there isn't a bunch of overhead like security software has, so there isn't any negatives to installing it.