Fantastic! Maybe they were just playing safe.I don't know why the website says "select nights", but here are links to calendars that show that it's running every night (and they are official calendars - each page says The Walt Disney Company at the bottom):
https://media.disneywebcontent.com/StaticFiles/ParkHours/WDW_TAC_2017Sep.pdf
https://media.disneywebcontent.com/StaticFiles/ParkHours/WDW_TAC_2017Oct.pdf