The Blink ability is meant for exactly that: dodging.
Most people have some difficulty with it initially because they're so used to the Glide jump. IGN released a video for optimisation (mainly for PvP), that includes the use of Blink.
Basically, Blink is most effectively used as a distraction/evasion manoeuvre, rather than a means of getting to higher places. For example, in a PvP situation, it could be used to escape an enemy's line of fire, or to get closer to them to use a shotgun more effectively. The teleportation is a very effective way to break the line of sight an opponent might have on you, whereas using Glide allows them to keep a bead on you and continue to fill you with holes.
However, in most (but maybe not all) PvE situations, Glide would probably be a more optimal choice rather than Blink.