Pathfinder using water over road while getting to destination

Sure it is good that bot goes through water to get into destination but it's spending way too much time in water while it could use mount and run around the lake instead of swimming and taking minutes longer. This is bad thing especially at BGs such as arathi basin where there is alot of water.

This is probably hard to fix tho... Maybe there should be some kindof limit how long it can travel in water... Lets say 50 feet? If it doesn't find any other way than going through water then it should go that way