See, I refrain from categorizing in good and evil (except in my D&D game). I try to see their reasoning and understand what they did. Usually it follows some logic.
Lets say, you are an employee at WotC who is dependend on WotC having a certain exclusivity, becauae otherwise the thing you did would not be financial viable. So your job depends on it.
Do you think it is evil?
That does not mean, it was anywhere near a good idea to jump on 3PP with such an insulting OGL 1.1. I think it was bullying.
Now lets see how the bully reacts to resistance. It is not a cool thing to become the bully yourself. This just ends in a spiral of hate.
I believe its a great shorthand, just as Alignment has always been for me.
Lawful - They follow the letter of the law.
Evil - To get what they want at the expense of others.
There is no product concept under the sun, which Wizards could not have leveraged their UNRIVALED (in the space) social media, brand name, and (at the time) good will, into numbers WELL beyond being profitable. Anything a 3PP has done, or will do, Wizards could outsell them dramatically on the D&D name alone.
So, I find your scenario false, and misleading.