I currently live in Taiwan and just yesterday there was a subway stabbing - a 20s male started stabbing people on the subway. Naturally, reactions was slow as most people was playing their phones or getting some shut eye. He managed to kill 4 people, get off the subway and intimidate more people, before finally brought down by a 62 elder man.
Everyone can be armchair quarterbacks, shake their heads in disappointment, raise their fits in anger, but when you are in a situation such as the above, or witness a knife attack - you are stunned. Taipei is one of the safest city in Asia. Most of us don't see scenes such as this except on TV, and most of us don't know how to react. It's fight/intervene or flight/stay out of it.
I've taken defence classes, including Krav Maga and they all emphasize that knives are the most deadly weapon in the world due to its ease of access and the damage it can do.
Sorry it happened to the OP but I don't think society has 'become' anything. There's no proof that people are more willing to jump between a knife wielding maniac and a victim before the iPhone age.