Evangelion doesn't let silly coincidences influence important plot points.
Apart from the absolutely massive coincidence of Lilith landing on Adam's planet - something she was specifically designed NOT to do.
And the coincidence that, out of the c. 1095 days Gendo had to summon Shinji, he does so on the exact day that Sachiel shows up.
And the coincidence that, of all the places Samshel could have thrown EVA-01, he throws him almost on top of Toji and Kensuke.
And the coincidence that, of all the days Clockiel could have shown up, he chooses the day of EVA-02's arrival.
And the councidence that, of all the days Zeruel could have shown up, he chooses the day Shinji abandons Nerv.
I can tell you with absolute certainty she did something to the SDAT. You'll see in 3.0+1.0, possibly
If Mari did modify the SDAT - so what? And how would she have modified it?