Nah man, its YOUR script, you sort of have license to do it your way. If you got this really cool idea for a title sequence (which, from the sound of it, you do) just go (like it says on the link)-
Blah blah blah. Cool shit. Blah blah blah.
END OF TITLE SEQUENCE.
Thats pretty much it. Some people like to use SUPER TITLES, but hey, whatever you like.
The reason is says that on that web link is because its aimed at purely writers. If you plan on making this thing, it doesn’t really matter. Even if you aren’t, it still shouldn’t really matter.
Go write that sequence