Let me also add that there is a "team of lawyers" to help resist attempts to force ISRG to violate its policies or betray its users. It's not clear to me that all for-profit CAs would resist such attempts better than a CA founded by EFF and Mozilla and with a Stanford law professor on the board.

I'll also note that ISRG is publishing legal transparency reports, something which is still not very common in the CA industry.

https://letsencrypt.org/documents/ISRG-Legal-Transparency-Re...