True.
One defect is that "argument against God" is way too vague. Is it supposed to be an argument against God's existence? (That conclusion wouldn't seem to follow and many atheists today insist that isn't what they are claiming.)
It's an argument that the whole notion of God is made up.
Does this mean that God can't exist? Well, even a stopped clock is right twice a day, so the mere fact that someone's belief system is unjustified and unreliable doesn't
absolutely mean they can't be correct.
An argument that other people shouldn't believe in God? (They would have the burden of arguing that case.) A reason why they themselves don't believe? (It might be an accurate account of that.)
Is the hair-splitting distinction between "we know this is made up nonsense" and "this is indistinguishable from made up nonsense in every way we can measure it" enough to hang
your belief system on?
It wouldn't be enough for
me, but you do you.
But more fundamentally, I think that the initial premise is very likely defective. In other words, the proposition 'There is no evidence for the existence of God' is arguably false.
There is no end of religious experience. There are (purported) revelations and (purported) miracles. And one could certainly argue (and many natural theologians have) that the existence of the universe and the order that it displays is itself evidence of God.
Obviously atheists can and do argue against all that. But that leaves them arguing less that there is no evidence than that there is no evidence that they are willing to accept. Which is indisputable but largely unconvincing to theists.
Reasonable people can have differing points of view on where to set the bar for what should constitute "evidence"... but only above a certain threshold. If your bar is set so low that mutually exclusive claims would all clear it, then your bar is objectively too low.
... but if you still want to set your bar so low that your god clears it, then I think it's fair to say that there's evidence both for and against God, and that the evidence against God is generally stronger than the evidence for God.
Does taking that approach help your case? I don't think it does.
That's certainly one way of looking it it. It also has the additional advantage of providing a possible answer to the problem of evil. That's one reason why I like it.
How does saying that God is testing us help resolve the Problem of Evil?
It seems to me this would just imply that God inflicted evil on his creation deliberately, which cuts off a number of arguments apologists try to use. Meanwhile, I don't see how it would help excuse God's actions.