That's because scientists can simply change the criteria as necessary.
Be it moving the decimal point to accommodate deep time, to gerrymandering the geologic column to erase evidence against it.
Case in point: rabbits in the Precambrian.
According to Wikipedia:
Rabbits are mammals. From the perspective of the philosophy of science, it is doubtful whether the genuine discovery of mammalian fossils in Precambrian rocks would overthrow the theory of evolution instantly, though if authentic, such a discovery would indicate serious errors in modern understanding about the evolutionary process.
SOURCE
Simply move the dates of the Precambrian up or down to include them and voila, problem solved.
Deep time is another good example.
Simply move the decimal place to the right as needed to make things look older and older.
From AI Overview:
The concept of deep time provided the necessary timescale for Charles Darwin's theory of evolution by natural selection, allowing for the gradual accumulation of evolutionary changes over millions of years.