Reminders sync to my mac via iCloud and then I import into TaskPaper via the inbuilt Mac app feature.
To tell Siri something I have to shout it out, sometimes that's not appropriate.
I am after a clean text input to just capture thoughts. There are a bunch of apps that are like TaskPaper on iOS. I however just wanted something with low cognitive load and would just save to somewhere I know I can get to later in TP.
It needs some work to get past rule 4.2 for sure.