It doesn’t look like recoil to me. It looks more like you are not spreading your fingers apart to reach for the next fret in the sequence. Instead you are keeping your fingers very close to each other and moving your entire left hand to get to each note.
I don’t know whether this is intentional or not, and I’m not a teacher so I can’t say for sure that this is ‘bad’ technique, but it seems like it could easily cause problems. This approach seems to convert every new note into a position shift, which many players find to be less accurate and harder to synchronize than playing within a box (i.e. one finger per fret). It also seems likely that it would make hammer-ons and pull-offs especially difficult. Again, I’m not a teacher, so it’s possible I’ve overlooked some obvious benefit to this approach.
It reminds me a little of Lisa X. She shifts her left hand more than other people to compensate for the fact that her fingers are so much shorter than average (still being a kid and all) and she can’t reach as far as other players can, though she still spreads her fingers quite a lot. (She’s a great player, though. Don’t get me wrong.) As her fingers get longer, I imagine she will do less shifting.
I’m curious. Can you play the standard 1234 chromatic exercise without lifting your fingers?:
-----------------------------------------------------------1-2-3-4--
------------------------------------------------1-2-3-4-------------
-------------------------------------1-2-3-4------------------------
-------------------------1-2-3-4------------------------------------
-------------1-2-3-4------------------------------------------------
--1-2-3-4-----------------------------------------------------------
After you play each note, keep each finger in place until you switch strings.
I’m not saying you should always play this way. I’m just asking if you can do this. How does it feel when you do?
Is there a reason you avoid stretches with your left hand? Do you stretch when you play chords?