I agree - thought the dog would make the top three but it sounded like they were set up to do the same thing again and that probably wouldn't have worked as well - it was a surprisingly entertaining 45 seconds or so tonight. Had me on the edge of my seat far more than the supposedly "dangerous" roller skating act.
Re: the titles. They've been gone a while now. They introduced the Union Jack short sting last year and had for at least a year or two before that used just a short version of the main titles on the show. Indeed I think the new titles with the "stutter" were introduced when Michael McIntyre and David Hasselhoff were on the show and then the next year cut in half before being dropped completely.
It's great that everybody gets sarcasm.