Somebody will want paying for the trains regardless. At present, given the size of Falmer Station, it is just logistically easier to leave the barriers open when 25000 people turn up on a matchday. If the transport subsidy were ever abandoned do not expect the saving to passed on to ticket...
Disagree with the withdrawal of the travel subsidy, as we saw with the failed voucher system in the beginning it would just encourage evasion. It's actually cheaper just to apply the subsidy to all regardless of use.
I'd just dock the players a couple of quid a week, they'd hardly notice.