Did Mata Nui reverse the Shadow Matoran mutations?

When Mata Nui used the Ignika to cure the Pit Mutagen, did he also cure the mutations done to the Shadow Matoran? Previously, you have stated both “No” and “Yes” in answer to this one.

No: https://greg.thegreatarchives.com/2008-2010/page305#post12192 (2010)
Yes: https://greg.thegreatarchives.com/2013-2017/page725#post12763670 (2015)
You’ve also stated Vican retained his mutations by choice;

Which is correct?