...The funny thing is I have used the platform before and things went smoothly, I never got this same warning at the time, I think it's just a month ago.
That's probably because the platform wasn't reviewed or reported when you used it. It's also possible that there's an issue with this AvengerDao platform and has been issuing false or misleading warnings. It seems they flagged a lot of other projects but I cannot see any published report.
You're still free to use it if you insist. Certik trust score on this platform is "Good" but it should also be noted that there was no resolution to all the 8 findings of Certik
https://www.certik.com/projects/positionexchange