I don't see how a ruling on tactician has anything to do with whether FFG wants to adhere to the definition of an attack or not with TLT. Step 1 of an attack is to declare a defender. TLT allows you to make two ATTACKS. Therefore, you must declare two defenders, and R3-A2 can double stress. Also of point - the two attacks can be done on different people. But this is RAW... who knows what the RAI is until a W7 FAQ clears it up.
This has already been confirmed by the FFG. TLT only declares the target one time and you can only attack 1 target with it, not two. So with the title it deals 2 stress, without it deals 1.
Where was it confirmed?