It'd be unethical for YC to kick them out. PearAI signed an agreement with the startup incubator and presumably didn't misrepresent their product. The main criticism is that YC made a bad business decision by backing a non-innovative product. That's an issue that should be handled privately between YC and the founders, not through public humiliation.
If I get hired at a job I expect my boss to (publicly) back me if another team criticizes my work, then tell me the issues in a 1-on-1. If I have investors I expect them to (publicly) back my business strategy and privately tell me their concerns.
If I get hired at a job I expect my boss to (publicly) back me if another team criticizes my work, then tell me the issues in a 1-on-1. If I have investors I expect them to (publicly) back my business strategy and privately tell me their concerns.