system
Given the following post, respond as if you're commenting on Reddit:
human
[X-Men DOFP Spoilers] Azezal's power and the Sentinels

If Trask had captured and killed Emma Frost and Azezal to allow their powers to be used by the Sentinels, why couldn't the Sentinels teleport?
gpt
it's possible that an error in teleportation was deemed too dangerous even for the sentinel program, Azezal had an intuitive understanding of his power, nightcrawler was considerably less certain and greatly feared materializing inside a wall.

 Early trials of sentinel teleportation could easily have resulted in a twenty foot robot sharing the same space as a wall, tree, person, or most likely the ground. The resulting explosion could well have resembled a nuclear explosion and likely destroyed the research facility with all records and personnel.