Comment by eitland
My understanding is they are just stubborn. They once did it this way and now it is "the Apple way".
Recent example: Apple used to hide "search in page" in the share menu in mobile safari. Far from obvious, but at some point one discovers it because there is no other place to look for it.
Now they have finally decided to make a standard fly dropping overflow menu and hide the share button there. But interestingly you still need to open the share menu from there to find the search button.
Meanwhile other buttons that weren't as obviously misplaced in "share" like "Add to Bookmarks" are now on the top level together with the share button.
Same goes for the arguments against things like cut and paste in finder: they didn't create it back in the day and now there is a complete mythology about why cut and paste in Finder would actually be stupid and almost evil.
FYI, an easier way to search in pages in Safari is to just type what you want to search for in the address bar, and then at the bottom of the list of suggestions (you may need to scroll it down) you can tap "On this page".