As PP mentions, rooms are located throughout WDW resorts, various buildings, floors, views and room categories. An HA room could be closer to the lobby, but could be further.
Accessible rooms are not a “request” - it is a bookable category. Since the OP was moved to Kidani due to closure of AoA, the price protection they received may not carry-forward if they change room category.
OP - i suggest you call to have the request noted, along with your reason. Requests are not guaranteed but WDW does try to meet those requests whenever possible. Then skip the request section of online check-in.