I don't think anyone would argue that technology doesn't have the potential to be used as a competitive differentiator in the consumer banking sector, but as somebody commented on the referenced post, "Disruption is much more fundamental. It is about rethinking the needs and desires."
Interestingly, if you focus on the needs and desires of customers, you might come to the conclusion that building a bank is the worst way to pursue the opportunities technology has created in financial services. USV's Andy Weissman had a great post that talks about this[2].
[1] http://jackgavigan.com/2014/04/14/disruptive-bank/
[2] http://blog.aweissman.com/2013/01/banking-and-unbundling.htm...