The Madison Square Garden group is currently trying to get permission to build a new entertainment venue in London (MSG Sphere London [1]). A history of poor corporate ethics/behaviour like this could be considered a strike against them.
Suppose Google decided to ban you from using all Google services, just because you work (or once worked) for a law firm that is representing someone in a suit against Google. Would that be fair?
would i be happy about it? no. but the company that i work for is suing google, so it’s assumed there would be retribution of some sorts.
Imagine if you had to sue a company for a wrong doing, but still would require the services of said company. They could pressure you to drop the suit, by using this tech to deny you access to their services.
So even if the suit had merit, the company escaped being sued. So this would produce unfair outcomes.
In other words, a company discriminating against customers should be illegal, except in specific circumstances allowed by the law.