IBM has actually been using XLM in some really innovative cross-border financial transaction networks for over a year, please see my article here: https://steemit.com/cryptocurrency/@hongro888/ibm-uses-stellar-xlm-to-solve-real-world-problem
IBM isn't re-inventing XLM, they are merely using dAPPs to create a stablecoin that is a necessary component of trading ecosystems.
RE: IBM stable coins