Does anyone see anything wrong with Billy Graham's invitation?
No.
The criticisms of the "
invitational system" I have read usually complain it is not the precedent set in the NT
(As is the case with Post #3). The (typically unstated) argument being, "If something is not in the Bible then it is wrong and should not be done," but 1) the Bible is not exhaustive and 2) there are many practices that are not stipulated but nonetheless permissible and profitable. If we were to adhere specifically and rigidly to the NT examples then we would have to wait on the sinner to ask, "
What must I do to be saved?" We could preach and preach but never ask. Aside from the fact the criticism described in Post 3 is an argument from silence
(what scripture never states), were we to abide by that measure (which itself is never stated in scripture) then we would have to abandon church buildings
(buildings built specifically for and especially for Christian religious practices) and we'd have to limit fellowship to people's houses. We'd have to get rid of all the lecterns and pulpits, the stages upon which they sit, the use of sound systems, and the practice of having one single individual responsible for the spiritual well-being of everyone else in the congregation, just to name a few other practices that are nowhere found in scripture.
That being said, it is my observation that the chief fault with the invitation system is that it usually lacks follow up. Even when there is a taking of a person's name and a follow-up phone call for a person repents and states a belief in Christ, that's not the same as an integration into a local body of believers. That is the biggest problem
practically speaking, but
theologically speaking the problem of experientialism is HUGE (as is cited in Post #4). Replacing creedalism with experientialism has led to a plethora of problems cognitively, doctrinally and, in turn, practically. We have millions of people thinking they are Christians merely because they mouthed some words that, in their minds, make them Christians
(which, as Post 9 observes, is a work). Many of them (like Billy Graham???

) became teachers who propagated that thinking. It's worth noting Mr. Graham was a Dispensational Premillennialists who made a lot of money of preaching and the selling of books where predictions that were made never came true.
My own conversion took place as a consequence of God's use of an altar call and I have never looked back to life before Christ with any appeal. Otherwise, I might never have answered the question never asked (or God would have found another way

). I suspect an altar call in a doctrinally sound congregation can have enormously positive effect for the kingdom of God but, alternatively, the same call in a doctrinally deficient congregation can be just another diversion and possible one of the many lanes in the very wide road leading to hell.
I'll stop here but there are some problems with most of the other criticisms, too. Although each has some veracity, the criticisms of the invitational system are not well argued
(for example, sola scriptura does not preclude something new, and altar calls are not always to the front of the room where the altar is located).