We're saying the same things back and forth to each other at this point and can probably wrap it up.
If what you say is true, that reviewers don't bother reviewing the actual data, then mistakes like missing a decimal point and reporting figures an order of magnitude off would not be caught. That would be astounding, but fortunately most of my coworkers who have experience in academia do not corroborate your claim that reviewers don't bother to look at the data used to produce the paper.
What often happens is that, although the time they get to spend on a single paper is limited, reviewers still come up with important criticisms that end up leading to substantial changes (sometimes multiple rounds of them) or even an outright rejection.