I didn't see the skit, so I was in the dark, but, when I saw Tom Hanks come out, the way he did, the only thing that I could think was that it had something to do with being rushed!!!
So, yes, it may have been 'continuing the skit', however, at this point, he was making a presentation of a REAL award!!! An important award. I think it went to far, way past a joke, and into very bad taste.
PS: unless some new light is shed on the whole thing, I am going to assume that Tom Hanks was following script... I simply cannot imagine him acting that way for real!!! Unfortunatley, he IS an academy award caliper actor, and may have done his job far to well!