I think they missed the point: Its not that Jesus was here, but rather that he had the power to do this. However, there is more to the story...
John, Chapter 2
1 The third day, there was a marriage in Cana of Galilee. Jesus’ mother was there. 2 Jesus also was invited, with his disciples, to the marriage. 3 When the wine ran out, Jesus’ mother said to him, “They have no wine.”
4 Jesus said to her, “Woman, what does that have to do with you and me? My hour has not yet come.”
5 His mother said to the servants, “Whatever he says to you, do it.” 6 Now there were six water pots of stone set there after the Jews’ way of purifying, containing two or three metretes apiece. 7 Jesus said to them, “Fill the water pots with water.”They filled them up to the brim. 8 He said to them, “Now draw some out, and take it to the ruler of the feast.” So they took it. 9 When the ruler of the feast tasted the water now become wine, and didn’t know where it came from (but the servants who had drawn the water knew), the ruler of the feast called the bridegroom, 10 and said to him, “Everyone serves the good wine first, and when the guests have drunk freely, then that which is worse. You have kept the good wine until now!” 11 This beginning of his signs Jesus did in Cana of Galilee, and revealed his glory; and his disciples believed in him.
4 Jesus said to her, “Woman, what does that have to do with you and me? My hour has not yet come.”
5 His mother said to the servants, “Whatever he says to you, do it.” 6 Now there were six water pots of stone set there after the Jews’ way of purifying, containing two or three metretes apiece. 7 Jesus said to them, “Fill the water pots with water.”They filled them up to the brim. 8 He said to them, “Now draw some out, and take it to the ruler of the feast.” So they took it. 9 When the ruler of the feast tasted the water now become wine, and didn’t know where it came from (but the servants who had drawn the water knew), the ruler of the feast called the bridegroom, 10 and said to him, “Everyone serves the good wine first, and when the guests have drunk freely, then that which is worse. You have kept the good wine until now!” 11 This beginning of his signs Jesus did in Cana of Galilee, and revealed his glory; and his disciples believed in him.
First, remember that Jesus was at a wedding; not a somber occasion. Marriage celebrations are not known for their quietness, but rather expressions of enjoyment. Outward statements of happiness over the union of two people and the commitment of a lifetime. There would be laughter and plenty of noise and perhaps a bit of rowdiness. Really? Well, they had run out of wine!!! Notice also that Jesus calls his mother "woman", which is a sign of respect and that even though he says "My hour has not yet come", he does her bidding. Not just a little wine, but a lot-and good wine too. And yes, he had the power to do this--and this was just the BEGINNING OF THE POWER GIVEN TO HIM!!! His disciples believed more than just what their eyes beheld--- DO YOU????