IBM has had a painful few years, as it has struggled to convince the market that its Watson AI services are actually useful. Healthcare looked like an easy win, but pre-covid, it was clear that there were major problems with the sales pitch even in that lucrative sector, which had plenty of cash to splash around. With watsonx, IBM used MWC Las Vegas as a launch vehicle for an operator-facing endeavor, but this is very much an uphill battle for the institution. Without seeing behind the curtain, it looks notable that IBM was not able to drum up one operator, from either the fixed or mobile world, to at least test the system since launch. It would have been a…