I'm not speaking for BA but my underdstanding is that 'Trial mode' software is for you to learn how to use it's features, not to become effective in their use. It would be like having a trial word processor and expecting to be able to use it until you wrote a best selling novel. I'd have thought that 14 days would be long enough for most people to figure out what happens when you press the buttons.
You can test most strategies with tiny stakes and not spend more than about a fiver a week even if they're terrible. Live doesn't have to mean expensive. Some people instantly start chasing losses or want to be Charlie big potatoes and lose a heap of money.
