Yeah it was clearly faked. A few times throughout the episode Ellie passed Hannah, stood behind her, ran near her etc and Hannah didn't even flinch. Thats not a phobia tbh
Same as with the mouse. So terrified she had a 'panic attack' (as someone who suffers panic attacks I hate it when HMs make a slight shock out to be a panic attack) but could sit playing with the damn thing a few mins later