One possible explanation is that it happens all the time.

Signal prevents what should be official government communications from being recorded. If it's recorded it can be investigated.

This is absolutely false, or as the kids call it, "misinformation".

A 3 second Google search confirms:

100 emails contained information that should have been deemed classified at the time they were sent, including 65 emails deemed "Secret" and 22 deemed "Top Secret". An additional 2,093 emails were retroactively designated confidential by the State Department.

The whole issue with her emails is she purposely never labeled anything so as to have plausible deniability.

"But here emails" was just republicans doing what they always do and pretending to be angry over mild stuff while giving own people pass over big stuff.

I think a decent case can be made that one rounds up to the other, but I guess that case seems more like an argument to be made than a fact to be corrected.

I'm not going to defend classifying embarrassing information because it's well -- embarrassing. But the established trend is to classify information "just to be safe" and let someone else make the declassifying decisions, particularly someone that's not you.

There was a weird issue with Wikileaks in that publicly released information was still considered classified, and any documents must be still treated as such.

Was that silly, yes. This led to a weird issue where journalists and members of the public had more access to certain classified documents than people holding clearances.

That thing where one side is given unbelievable benefit of the doubt that literally ignores what was happening or is happening is not healthy.