with competition building its gonna make it tough
big banks make their first trade on their new blockchain
That isn't "competition". All they've done is build a conveyor belt for fiat. "Blockchain tech" isn't worth nothin - any man and his dog can build a network using "blockchain tech" to carry stuff around the place.
What they can't do is attract 2 Million Terrahashes of decentralised computing power to the point that that blockchain's tokens become a monetary unit in their own right, independent of any trusted third party backer or sovereign currency denomination.

you are exactly right, but everyone will be using it, as all fiat will go across this blockchain
making it probably the biggest blockchain on the planet by the time it is operational
does not compete with bitcoin I know for trust, but mum and dad may not..