No. if Lauda is excluded from DT1, he cannot be on DT2. I think your assumptions as to whose votes count might be flawed.
If you are on DT1, your trust list flows down regardless if your ratings show up or not.
Loyce is right. Excluded DT1 members can't "vote" for (or against) DT2 members. So Lauda gains DT2 "strength" compared to the previous DT1 "strength" because exclusions from TECSHARE et al don't count against Lauda anymore.
https://bitcointalk.org/index.php?action=trust;full;dtA review of the OP and the rules for DT, it appears you are right.
This appears to be a flaw in the logic of how DT1/2 voting works.