Yes! Each grant made from Every.org may be treated as public support for a nonprofit's public support test.
In the future, the expectation is that regulators will want you to treat donations passed through a DAF (such as Every.org) the same as if they came from individuals for purposes of passing a public support test. However, today, you would be receiving funds from another public charity (DAF - that's us!), and there is no excess contributor limit.