[BluffTHIS!]

While again I have no reason to believe that stuff about Barclay's terminating their relationship with neteller (and that would only matter if neteller can't find another banking relationship), Barclay's might be worried that they would be identified as the financial institution funding gambling sites, with neteller being viewed as a super account aggregator or something while Barclay's is the real underlying bank. However even then, that is just the same as if you transferred funds from a US bank to a canadian one you had, and then from that one to a poker site. That other bank is still one step removed, not on US soil, and thus not subject to the transactions prohibitions of the legislation.