How about this: the easier it is to relocate and work for FAANG companies, the more the FAANG workforce will resemble the global supply of people who would like to work for them. If the skill sought is coding, not sales, sufficient English fluency is not a great barrier. There are plenty of programmers who do fine without ever having mastered definite articles or the present perfect.
This view is only correct if a) the US border is completely open and b) all the candidates around the world can speak professional English. We know that both the above conditions are false.