I didn't find 5 that scary either, nor 7, but 6... holy ****, it was something else. But yes, it was really easy compared to certain other adventure games out there (cough, Out of Order, cough).
Trilby's is too morbid for me. I can take blood just fine, but when it's all over the place, it just feels overdone in my eyes. It seizes being scary and just gets gross and macabre.
Edit: I definitely agree with you on the characters and plot. They're both amazing, the kind you'd expect from a professional team.