With the update: 4 pokeballs to catch a CP10 pidgey and you were "lucky" enough to bump into.
Great if you live in London or New York and are a fully able bodied adult.
Not so great if you live in small towns and/or are disabled and/or a kid and don't have 3 hours to spend to come back with yet more pidgeys.
All the original Pokemon games had routes where something would definatley pop up. Running around 10 minutes on a gameboy map isn't any effor and you cover big distances. Not so true IRL.
Tracking is part of the game. That's what makes hunting and catching them fun - there's speed and skill involved. They might as well disable the broken tracker all together. You see a shadow, you try and find it. You can't. It despawns. So you get all pissed off at wasting your time and energy.
Disable the tracker it and then it becomes a game of chance. And nothing more.
That's how it's pointless.