This administration has consistently signaled that they will do all they legally can to punish those dissenters. Look at the White House labeling recent victims of ICE shootings as "terrorists", despite there being no sign of terroristic activity from these US citizens. Or, look at how the WH is cutting Medicaid benefits to Minnesota.
Going after the visa-holding employees of these companies is within reach of the WH, and it's consistent with their MO.