"Some sort", yes. But not with any kind of good technique.
If you're getting the sounds you want, it's good technique. The notion of specific "technique" is garbage. Wes killed any preconceptions about how to play guitar in jazz (and beyond). It's all about what works and most importantly, what works for YOU. Of course you know this, but I can't help myself whenever the topic of technique arises.
As a guitar teacher, I couldn't disagree more.