Yes, that is true. My original post was more about my first reaction (hence saying "feel" a lot), rather then a thoughtful (albeit armchair) analysis, and I'm not really sure what the driver was for that.
I didn't live through the space race which is perhaps the most obvious comparison in terms of overall speed and where each step was also substantial increase in complexity and risk.
I did live through the Shuttle era where the disasters were a complete shock, to the public at least.
Perhaps it is just because there do seem to have been quite a few mishaps (uncontrolled re-entries of both the prior station and boosters, various development and production explosions and the image of their first astronaut looking like he'd been beaten up) but, actually as you say, these have occurred over nearly two decades of the programme so perhaps this is indeed a reasonable pace.