Might also stem a bit from the old muay thai rules where anytime you moved backwards you lost points (some orgs still do that). So you end up with two guys going toe to toe until one man falls.
'Technique' tends to invole movement in and out, defensive strategies etc.
The mindset in K1 is generally go for as many knockdowns as possible as quickly as possible so it can appear more brawling in nature.
But just look at the technique on some of the kicks or Reems counter punching.
Good Technique should surely be what works best, most effective, and I think most of the K1 guys have that down pretty well.