I suppose I'm not seeing where this would suggest Wesley doesn't understand faith as gift.
But, further, my point is this: that faith is a gift isn't simply a "Lutheran" or "Calvinist" idea; it's a biblical idea. It's simply Ephesians 2:8. That we don't get to boast about saving ourselves, because it is God's work, it is God's gift. Even the faith through which we are saved is from God, not ourselves.
"For he himself also says, 'By grace you are saved through faith; and this not of yourselves; but it is the gift of God,' — that is to say, 'And in saying "through faith," even faith itself is not of yourselves, but is God's gift.' 'Not of works,' he says, 'lest any man should be lifted up.'" - St. Augustine, On the Predestination of the Saints, Book I, Chapter 12
"'For by grace,' says he 'have you been saved.'
In order then that the greatness of the benefits bestowed may not raise you too high, observe how he brings you down: 'by grace you have been saved,' says he,
'Through faith;'
Then, that, on the other hand, our free-will be not impaired, he adds also our part in the work, and yet again cancels it, and adds,
'And that not of ourselves.'
Neither is faith, he means, 'of ourselves.' Because had He not come, had He not called us, how had we been able to believe? For 'how,' says he, 'shall they believe, unless they hear?' So that the work of faith itself is not our own.
'It is the gift,' said he, 'of God,' it is 'not of works.'
Was faith then, you will say, enough to save us? No; but God, says he, has required this, lest He should save us, barren and without work at all. His expression is, that faith saves, but it is because God so wills, that faith saves. Since, how, tell me, does faith save, without works? This itself is the gift of God." - St. John Chrysostom, Homily 4 on Ephesians
-CryptoLutheran