first of all not every single dental office in the united states caters just to americans unless your living in central america, i know of many many many dental practices where their primary patients are from the native tongue of the dentist...you american we get it, so your dental practice will cater to american's...we all know how to speak, write, and read english but have you ever figured that reading sometimes takes 1 person longer to comprehend something than another person (aka someone who does not know a second language and was not born in the US)...so in a times test such as the DAT where you have to comprehend something in 1 hour might take you and hour but another person 2 hours, either way the comprehension is the same correct...my point is that when your in the real world reading dental journals and research journals you can take all day long, the most important thing is to comprehend the article you read...thats great that you can comprehend the RC passages on the DAT in an hour but for someone else it may take longer...at the end of the day we both can comprehend the same passages....
But hey congratulations that your better at comprehending 3 passages in 60 min than most of people...nice job