Those statements aren't really contradictory. Would it be better stated if it said "strongly suggested" instead of "have to"? The point is that if you're sending transcripts to AADSAS, then use the transcript matching form. It lowers your risk. Ultimately, you don't have to do anything you don't want to let alone sending a transcript matching form, but then in this case, you'd just be rolling the dice.
But it seems as if you're planning to send transcripts directly to the schools themselves. So, you won't have to use the matching form. If you were you asking if you should send the transcript matching forms directly to the schools you're applying, the answer is no.
Also, why just not send an extra copy to AADSAS (even if you send transcripts to your schools directly). Personally, I think using AADSAS to send your transcripts will save you time, not the other way around, especially if you're applying to a lot of schools.