It doesn't make sense to plead with Pep to play for a win. He's a huge competitor anyway.
He will play a team that can win, without however taking big risks with player's health and fitness. If that was the last game of the season, you can risk injuries. But we play Real in two weeks, and have 2 PL games before that.
Pep will play the strongest possible team given the circumstances. It's as simple as that. The rivalry with Liverpool is on a different level to that with Chelsea. This game won't be like the Chelsea game last April. The motivation to beat Liverpool is much stronger.