Personally, I say nothing be done.
As someone who used to work in email customer service, if we had to apologize to a customer, we would do so at the beginning of the email, answer their question, then finish again with an apology. The apology done twice is re-enforcement that we are sorry for whatever the issue is, not so much redundant, as not all fully read everything.
People like to pick and choose what they read. Some read everything, while others skim and pick out bits and pieces. Those that skim may go back to fully read, may not. I don’t think I’ve really ever fully read all of the Wayfarer support pages, but picked out what I needed to know, but again, that’s me.
Basically, when it comes to a support page, which can also be seen as customer service, writing these are different than say a term paper for a college course. A professor will completely read a term paper, but the average person may not.
Support pages can’t be written just for one type of reading style, but many, which is the point I’m trying to make.