https://www.redcompasslabs.com/insights/why-canada-needs-ano... was something I found via a search that explains some of the nuance without writing a new post on the topic, other citations and resources are welcome.
Unfortunately its utility is curtailed severely if your bank doesn't trust your mobile OS (LineageOS, for me). For security purposes, my bank (RBC) triggers identity checks every time I try to send an EMT, and even after sending selfies, drivers licences, etc. — it still rejects the transfer.
So, security at the cost of all utility.
I have now resorted to transferring money between my accounts using paper cheques... like it's the 90s. If somehow they deny me cheque deposits I'll have to use an ATM and walk the money to the other bank. Given how there are now banks that don't even have branches, this could be a major problem in the future.
This Real-Time Rail system sounds promising, but that's not the link that'll kill it for everyone.