You can compare her to Hades and Amaterasu, in a completely different aspect than what we were discussing. The two can be compared in a sense both have a party defense up but I've been focusing on her barrier, which acts as a weaker damage nullification buff. That's why I'm using Gaia as the example as she is the only one with a party wide nullify.
And no, I wouldn't use an example like 'Sasanoo is weaker version of Svarog'. But that doesn't mean I can't compare those specific two, as there is plenty to compare between them.