Not kill it, no. Work to make it better and endorse standards since it (IE) still has the greatest market share of any browser and is a tool that’s already positioned to teach millions of users more about the Internet.
They’re in a rut, so to speak, since sudden and complete compliance would hang all the systems that have been built on the faulty foundation that currently exists out to dry. It’s a necessary evil at this point, but slow, steady progress would be nice.