Question about the order metatag

I am curious why the order metatag is not a "free" metatag like other metatags such as rating or score. When looking at specific tags, I often want to not only see the recent art but prefer scrolling through with order:score or order:random. Considering rating and score and a good bunch of other metatags don't count towards the 2 tag limit, I was curious why order specifically does count towards it, and whether it could be changed to not count. Thanks in advance for any replies

IIRC it's because it's an "expensive" query—getting posts in any order besides "post ID descending" on top of any other queries means it takes a while and it's more likely for the query to time out.

I see. That makes sense. I hadn't had any issues using "tag + order:" before so I figured "tag1 + tag2 + order:" would also not be much different, but it does logically make sense that it would increase the time and thus lead to more timeouts. Thanks