Exactly! This is a fantastic opportunity, but it won't be the last opportunity - if it doesn't work out this time, they'll (probably, going by AL track record) run the programme again next year. Those of us who do get the PFO email shouldn't wallow, but acknowledge it as a learning experience and use the time between opportunities to brush up on soft skills, aviation knowledge, maths & physics etc. so you're better prepared for the next one.
Personally, i haven't heard back yet either and even if they did call me up now, I think it's too late for me to change plans. Currently living in Melbourne but moving back to the UK at the end of the month, if they called me up for assessment on the 16th it would take some serious consideration and money to actually go along now. Can only hope they learn from this experience and improve their timings for next year.