This is transparently a response to all of the negative publicity they’ve received. Understandable. When students google for Lambda School the SEO returns all the recent bad news items.
It might work.
It might work.
Companies have trademarks that are single Greek letters. I guess the question is: did Lambda School's line of business overlap Lambda Labs'? At first blush I don't think so. One is a school and the other is in hardware. But I'm also no lawyer so ¯\_(ツ)_/¯