[aeternum]

A clearance from ATC means you can land not that you must land nor that it is safe to land. PIC still has the ultimate choice. It's common practice in the US to issue landing clearances even when another plane is on the runway or there are two landing planes ahead of it also with landing clearances, if that wasn't done you would be waiting far longer at the airport.

It's obviously the right choice to give the PIC the information via avionics in a graphically concise way that highlights this potential runway contention because it is real and pilots are expected to adjust their speed to maintain the right sequence.

When it isn't possible, which does happen, IE a plane ahead is slow to clear the runway or to takeoff, pilots are expected+required to execute a go-around.