I get what you're saying and it's concerning how much power these big labs have amassed and how little transparency there is in what they do with it...
But I doubt this a major factor in the trend. I just don't think it's something most corporate users run into. My understanding is these guardrails are negotiable for enterprise customers anyway.
And, not for nothing, but if I owned a human-powered translation company I would've refused to translate it too.