Difference between using assert and pattern matching in unit test

Questions & Help Questions
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1

I came across the following code when browsing the FireZone GitHub repository:

  use ExUnit.Case, async: true

  alias FzVpn.Interface
  alias FzVpn.Server

  test "delete interface" do
    name = "wg-delete"
    :ok = Interface.set(name, %{})

    assert :ok == Interface.delete(name)
  end

If I understand correctly, the line :ok = Interface.set(name, %{}) will raise a MatchError if Interface.set(name, %{}) doesn’t return :ok. Why not simply use an assert statement, as is done in the very next line?