A week or so ago, a blog post was posted in this Community calling out Mullvad for using GMail as their email provider. Wasn’t the greatest blog post in the world and didn’t approach Mullvad for comment or explanation. Anyway, looks like Mullvad heard about it and responded.
I don’t think that’s a good argument though. Any other email provider is as easy to set up an account with and is more privacy friendly: proton, skiff, posteo. If they made a big blunder like that, I can only expect them to use other big tech stuff in the background like google DNS servers etc. Unti someone points it out