traveling to fast travels is easy on board. You hardly have to skate around the city for more than a minute to go to a spot. And in the end the game is called „skate.“ and not „commute“.
The thing with the bearings and why you can’t get off your board is because the line ends when you get off the board. A line is a combination of tricks on different obstacles in a row. Getting off your board before finishing it is not considered a trick which results in a failure for the attempt.
The annoying thing with players dropping obstacles to prevent other players from finishing challenges or just trolling is definitely getting out of hand. Me and some friends had that happen yesterday and all we could do was replacing the dropped items from those two douchebags for 30 Minutes straight. This is heavily annoying though.