I have had 2 RAs at DEN. Out of 5/6 visits this year.
On 1 occasion we were 4 across - to the 4 parallel rwys.
We had a/c on both sides, very close, gear down, and if we all reacted, or did full go-arounds, we would certainly lose sight of each other. And could I trust the software to cope with 3 or 4 simultaneous reactions?