Does the use of snakeoil in the TLDR not run contrary to the narrative in the blog? When the 'snakeoil MITM' certificate was updated - they became aware of, as

Does the use of snakeoil in the TLDR not run contrary to the narrative in the blog? When the 'snakeoil MITM' certificate was updated - they became aware of, as a direct result of MITM, a problem that had not previously been known to them?