The airport changed where the coaches go because it was clogging up the forecourt and vehicles could not move. But having to pay £12.50 to pick up/drop off, then £25 per hour is not unreasonable to ask, specially if it's within a 2 minute walk to the main terminal. God knows how many they pay to...
The aircraft stands which used to park FlyBMI aren't big enough for an A319 or A320. They don't want to make them bigger for the meantime incase things change. But there are more aircraft stands in progress which should be operational by May time I believe.