So, I do agree this could be problematic, on specific cases where people not using a major browser were accessing resources some is interested on, on a network they have control of. Makes the surface quite small.
The threat here is more so for 'backend' services than regular browser users.
There are people from these CAs who were denied in the past explicitly for concerns about spying who now work at eMudhra[3,4].
0: https://bugzilla.mozilla.org/show_bug.cgi?id=1474556
1: https://bugzilla.mozilla.org/show_bug.cgi?id=1427262
2: https://groups.google.com/g/mozilla.dev.security.policy/c/nnLVNfqgz7g/m/TseYqDzaDAAJ
3: https://bugzilla.mozilla.org/show_bug.cgi?id=2083449#c43
4: https://emudhra.com/en/blog/scott-rea-joins-emudhra-as-senior-vice-president-global-strategic-advisor
Again, I have no proof. There may never be any proof. But I think it's time we think about who might have found out about this weak key when it was first issued a year and a half ago and trusted by the whole world and what they would have done with that information.