To get credit for level 2, level 3, or level 4, the first two twizzles must be entered from different edges. In Sasha & Ivan's case, both are entered from the Forward Outside Edge, so they get credit for Level 1 only, no matter what other features are added. As Tanith said, this is a mistake of the choregrapher-if there were an additional step and turn between the first two sets of twizzles, they could start their second twizzle from a different edge. But they didn't.
Here's the requirements for level 2, which they did not meet as a consequence of this:
Level 3 and Level 4 start with the same requirement I have bolded with only 2 twizzles talked about, so those requirements are not met either.
It doesn't matter that the extra set of twizzles started from a different edge. It is the first two twizzles that have the requirement to be different.
All that happens if they add an extra step (they can get up to 3 steps) is that the twizzle is coded as synchronized twizzles rather than sequential twizzles.