there is. most top players wont play anything other than arabia. t90 is the only guy fighting for variety. this also comes from being able to hold down their position. Take a look at the DM world cup. Where are the so called top players? half of them didnt sign up and half of them got defeated by names unknown in the 1v1 ladder. Now tell me, if someone is a pro in one mode, does he not have a motivation to keep it that way to maintain his status quo ?
Modri and team defeated hera lierry mbl in black forest game. Hera, the winner of Hidden Cup , was destroyed on black forest. No one is going to "tell you" that they want to maintain the status quo by keeping the same map, the same strategy, the same boredom a started playing.
Players having preferences is different than they organizing to push balance changes or discourage sponsors and tournament hosts of putting maps like BF in the map pool of their events.