Travel Suppression exists so that player's can't just cheese-kite enemies.
Interesting thing about that. At one point, the devs considered kiting to be a valid strategy for blasters. However, the devs later decided it was not, and tried to put significant emphasis on eliminating kiting as a credible strategy. For example, by ensuring all critters had ranged attacks. In fact, by the time they did this kiting was, compared to most strategies, extremely inefficient. However, there were edge cases they were concerned about. Two in particular were first the act of herding and vaporizing melee critters, particularly wolves, which they thought was exploitive. And the other was that although it was a safe strategy, it was a boring one for the average player. Creating a safe but boring local-minima-like strategy could turn players off to the game, so it was eliminated as a viable strategy altogether.
To this day I believe that a moderated form of kiting was and should have been a legitimate form of gameplay, particularly for novices. Once aggro limits were put into place for herding, eliminating kiting for PvE specifically was not an important issue. In fact, a proper risk/reward analysis of the game would suggest that trading safety for lower than average reward rates was an entirely legitimate player gameplay choice no different than other similar but more subtle such choices (such as playing solo tankers).