[Arro is going off the assumption that there is implied risk here, and the Doctor is aware of said risk. Watching the video quite intently, he's making his own records of the data, since this experiment under more controlled conditions is worth recreating. If the Doctor survives, or after he's restored; he's going to have to pick his brain on the matter later.

As far as being part of the concerned masses trying to reach him? Well Arro is clever enough to recognize a pocket dimension since his sweetheart lives in one back home, so he's not going to endeavor hard on trying to call to a man hit by such a degree of electricity, nor is he going to try and find the man. Because there's the matter of finding the way point to the void, as well as actually getting into it.]

Dear me... Doctor...Who, was it? Regardless Doctor, if you're alive I would very much like to discuss this experiment with you, after you've recovered.