Well, what I mean is, I'd rather have a conditional landing clearance that will work than an absolute clearance that may not.
"Land after" is good enough for me - it has a defined meaning and application, and keeps the radio working as slickly as "after ... line up" does for the other end of flights. Also, if an aircraft stays on the runway to vacate at block 16, it doesn't stop the next aeroplane landing, so helps to improve ground movements as well.