Is it anticipated that all memento compatible web archives will be listed in the archives.json file?

I had a look at a list I maintained today and I believe these all offer the "timegate" component of Memento, I am not sure how to access their time maps (perhaps that means they are not compatible?):

• Library of Catalonia: https://wayback.padicat.cat/wayback
• Croatian Web Archive: https://haw.nsk.hr/wayback
• Croatian Web Archive (English Language): https://haw.nsk.hr/en
• Estonian Web Archive: https://veebiarhiiv.digar.ee/a/
• National and University Slovenian Library: https://arhiv.nuk.uni-lj.si/wayback/
• York University Ontario: https://digital.library.yorku.ca/wayback/

NB. below would be a correction to LAC Canada:

• Library and Archives Canada: https://webarchiveweb.wayback.bac-lac.canada.ca/

Connected to: #139