I want you to know that I didn’t read that
Nor should you, it's garbage. This is 100 percent gentrification for the reasons you note. Those new higher paying jobs at this location will start to fundamentally change the land economics of the area, and are symptomatic of broader economic changes which have already happened. As it becomes an employment hub with many new jobs across pay scales, the land values around it will increase, thus also increasing rents for tenant types, residential, retail, office, and so on. This will displace not only lower income folks but also businesses that cater to low income communities and low rent businesses themselves.
That said, employment growth and the expansion of locations that can support dense employment centers is really symptom of a growing city and I would agrue in this case, particularly one with a limited supply of land and not merely a lack of housing. I don't see job growth as a bad thing, and nor do I see the growth of new employment centers as a bad thing. In many ways it is beneficial to have a dense polycentric city (a city with more than one major employment center) rather than a monocentric one, especially if those cities are land constrained which Boston certainly is. Spreading out jobs increases access to those employment centers and helps to spread their associated tax dollars, services, and other positive externalizes around the city.
As always, the challenge is how to protect vulnerable folks and businesses that make vibrant communities from being displaced. The short answer in my option is, you can't entirely. The longer answer is, build more mixed income housing that provides deed restricted units and establish some method to protect some lower rent business, especially retail and service based businesses, from being displaced. I am less familiar with those commercial strategies but think that larger commercial development could conceivably provide an amount of space subsidized in a similar way residential development does, and of course there is always tax breaks and grants.