You can not offload fraud and abuse on 'oh well there are so many new domains'. This is bullshit.
I went into internets in 1995. Must I tell you about fraud and abuse in early 2000s?
Blocking domains is a cheap shot. It ticks a box somewhere maybe, but it does not and can not prevent or mitigate.
I never said blocking domains is the right way to go. But I can't blame them either. You don't know the type of fraud and abuse they have been seeing