Speaking for myself, I couldn't care less if people want to hope that the Brewers as currently constructed can be successful in the playoffs. Actually, I have that hope myself.
But, I would like to see criticisms of the team to be addressed by comparing them to other playoff contenders, instead of the league average. In many cases, being league average makes the team the worst of any playoff contender. I would hope that the Brewers are aiming higher than that.
Before the season started, the general consensus was that the Braves, Mets, Phillies, Brewers, Cardinals, Dodgers, Giants, and Padres would be fighting it out for the 6 spots in the expanded playoffs. As we approach the halfway point of the season, that's exactly how things are playing out. Those 8 teams are the only NL teams with a record over .500. They (plus the Marlins) are the only NL teams with a positive run differential.
In addition to hoping for some players to improve their perfomances in the second half of the season, I would like to see some upgrades to the roster, most notably a right handed hitter who can play 1B (and maybe corner outfield).