There's one thing different between your solution and mine: I sent 4 lemmings to the left(you sent 3) and I used a bomber to break the wall in the digger pit.(you used a laserer) And with the leftover laserer, I saved the blocker by releasing him from below with the leftover laserer.(You didn't use a bomber at the digger pit and this is why you don't have to save the blocker!)
Overall, you took the intended route and your solution has all the intended tricks in it
In terms of other feedback, I do wonder if the long digger assignment could be adjusted somewhat into an alternative terrain configuration that is quicker to navigate.
That's a very good point and I 100% agree with your opinion. At first, I considered making the wall hollow and giving several floaters instead of one digger so you don't have to do the long digger assignment. But that was not satisfying for me visual wise.
Luckily we have the fast forward and time skip buttons in Neolemmix at least