As far as I know multiple business units within IBM, including Cloud, Watson, and Watson IoT have gone through relocation requests for Design and Engineering roles.
I would only say that the scale of IBM operations dwarf other tech companies you might think of as "large", with a headcount around ~380k per the 2016 IBM annual report [1]. Making a concrete, sweeping statement about the values and policies concerning a collection of people this large is a fraught endeavor.
Think about it this way, the population of Seattle (668k) within the same ballpark as IBM. If a friend of yours living in Seattle were to make a blanket statement about some aspect of Seattle, how much would you trust it? And even if your source was WSJ, how precise and to what portion of the population do you think a 900 word article could be relevant? And even if you yourself lived in Seattle, would you feel comfortable making blanket statements about the impact of even something as widely discussed/published as a new law or ordinance?
[1] https://www.ibm.com/annualreport/2016/images/downloads/IBM-A...