They only have to get "lucky" once, we have to get lucky every time so it makes sense if you want this to keep pushing it - once the law is passed it's much harder to revoke it later.
The people pushing it are ~bribed~ lobbied hard by groups who want this so they don't care about wasting their time or resources since they are getting paid for it.
> Is there not some career disincentive/consequence where if you try to push Encryption back doors, you get demolished in your re-election
In a somewhat ironic turn of events we don't know who was pushing it this time as they where protected by anonymity - one rule for them I guess and another for everyone else.