It should be a massive struggle to climb a Tallneck like 7-8 Glinthawks everywhere, and when you reach the top you fight a Stormbird which can interrupt your override.
I hope they increase the challenge in the sequel.
Aren't every tallneck locations scattered with enemies to fight/sneak through ? All the while you have to figure out the tallnecks route and best location to get onto them. I thought it provided sufficient challenge and provided a nice twist on the formula.