I constantly see and hear this mistake from actual humans too.
It's fairly ironic that your own comment contains run-on sentences, speculative claims and phrasing peculiarities like "could have even" instead of "could even have". Perhaps you are less sensitive to this than you think!
It's strange that you criticise "could have even" when it is a phrasing clearly being used for emphasis. "Could even have" makes no clearer sense in context.
No irony detected.