Clippers didn't become playoff contenders, they were already in playoffs, they took warriors without injuries to 6 games, nobody played the uninjured warriors except clippers.
With this two trades they became championship contenders for sure, I am not saying they will be champions but at least we know for a fact that there is no team that can easily beat clippers, yeah it can go to 7 games or 6 games or have a very difficult over time games and what not and eventually clippers may lose, that is a possibility but nobody can sweep clippers. Lakers between got bunch of great additions, rondo is back, cook came in, cousins came and of course my favorite ; Danny green is in Lakers now. Considering they missed out on Kawhi and had to wait a lot during free agency, it was a great roster fill up by them.
I can't disagree with Clippers becoming championship contenders after they acquired Kawhi and Paul.
On the Lakers part, I only consider Danny Green as the great addition to that team aside from AD.
On another note, it's funny all those three (Davis, Cousins, Rondo) being reunited in another team.