The problem is that people are horrible narrators about their own issues/past. They like to leave out critical information.
The idea of a company in the 80's going around that they are promoting Asians to positions over white people, sounds as far fetched as finding oil in my backyard. The reverse is way more likely in that time periode.
More then likely, he was not qualified for the job. But people often have a hard time accepting this, and feel entitled for position. Often by virtue of working somewhere longer. When passed over for promotion, then they create narratives its not themselves who is the issue, but it must be somebody else their fault.
So when you 20, 30, 40 years later tell the story, are you going to say "well, i was not qualified" or are you going to double down that you got passed over for a promotion, because "somebody had it out for me", or as "DEI hire" as that was the trending topic in conservative circles. What is a little lie to make yourself feel better, and have the world perceive you as the victim of horrible DEI hiring practices ... in the 80s!!!
If people think racism is rampaging today, they really did not live in the 80's... So yea, if it smell funny, you know there is bull.... involved.