Yeah, this was confusing. I specifically asked the admissions officer on this one. The real limit you should follow is approximately 500 words. The reason they say 1-2 pages is because approximately 500 words can be 1 page and then barely go into the second page, so more like 1.1 pages. 1.5 pages (1000 words) is way too much. Shorten it.
The overview below provides an indication of the number of pages required (based on font: arial, font size: 12, single spaced): How many pages is 500 words? 1.1 pages. How many pages is 600 words? 1.3 pages. How many pages is 750 words? 1.8 pages. How many pages is 800 words? 1.8 pages. How many pages is 1000 words? 2.2 pages.