The DE's are slanting inside. The DT's are looping to contain opposite of their initial alignment.
A more traditional double twist from a DL looks like:
Both have the DE's going inside and the DT's looping. Crossing the DT's creates an interesting challenge for the pass protection.
The initial inside looping action of the DT, looks and feels like a DT twist.
The loop causes the guards to squeeze inside and put their vision to the opposite DT. With the Guard's attention inside the End has a 1 on 1 inside rush opportunity vs. the OT.
For the offense to pick this stunt up the OG and OT have to set inside and redirect back out.
The OT has a difficult block due to lack of initial help from the guard. On a traditional DE/DT twist the OT will squeeze hip to hip with the OG. The body position of the OG helps stop the momentum of the penetrating DE. Once the DE is controlled the OT can set back outside to the looping DE. With the DT looping from the other side, the OT gets less help initially. No body positioning help for the OG means the DE may simply win the inside 1 on 1 pass rush. The other challenge is the OT may be engaged, locked on, and deep in the pass set by the time the looping DT from the opposite side shows up. In that case it is difficult for the OT to redirect and pick up the looper.
This same twist can be found other places like a old playbook from Tennessee Titans Defensive coordinator Dick LeBeau.