I hate to be the devil's advocate here (especially being a newbie), but how does "known about since 2011" fit with "cannot be corrected overnight"?
Thanks for refocusing on this post.
The problem is not "why is it not done yet", but more "why is it more urgent than taking care of bitcoin's ability to handle much larger transaction volume"?
The answer is simple.
It's on the same level as
"why is this label text still
purple when it should be
blue"
vs
"why is this label text stating..."
how much do you want to earn
instead of
how much do you want to give away