They've actually made it easier (just like they did with the January 2016 changes, which is why they funded more people in 2016 than they'd done in 2015), but you don't see it. These changes come about through member feedback. People (understandably, in my opinion) wanted the FTP and the Combine to have the same parameters. Don't take my word for it: just read this thread and you'll see them openly saying so. TST has also just abolished the "10-day rule", by popular request.
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They wanted to have the same parameters, but not the same profit target
I was in the chat room
People were finding it hard to suddenly be restricted on what instruments they could trade, and have even tighter restrictions on timescale.
TST have increased the profit target but kept the more restrictive weekly loss limit (which is not in the combine, so it is NOT THE SAME PARAMETERS)
They have increased the profit target, but not the drawdown allowance
The FTP is now harder and more restrictive than the combine