In fact, remembering the details of a meeting well enough to approve or question them is only possible within a very short time. Not to mention that just getting it out of the way immediately is the only sane way to proceed.
There are rules (laws?) about this, which the previous council broke constantly. And this has happened before, with previous councils approving months and months of meeting minutes all at once just before some of them stepped down from the dais for the last time. Hearing them approve many months of minutes that they couldn’t possibly have read through was proof positive, if we needed it, that they were hiding everything they could from the public and press and spending time only on issues from which they would benefit personally. Or at the very least, they were comfortable flouting the law and making things much harder for residents as well as others, including attorneys, researchers, developers, etc., seeking meeting minutes.
They consistently violated the sunshine laws which prohibit 3/5 of the Council from meeting without inviting the othe 2 or advising the public of the meeting. Apart from getting caught red handed a couple of times, how else would they know how to vote exactly the same on every single issue for 4 years?