I agree wholeheartedly with 2 main points:
1. The Brewers offense is less potent or reliable than indicated by the raw runs per game number. I have raised this more than once on the ongoing thread about the offense. The Brewers run production has been propped up by runs scored against the weakest teams in the league, including some games with extremely high run totals in single games against the Reds and Pirates. I understand that it should be expected that teams will score more against better teams and better pitchers. But, I have presented evidence that the gap between the Brewers R/G against weak teams as compared to R/G against better teams is much greater than the gap for other playoff contenders. IMHO this leads to a legitimate concern that the offense will really have trouble scoring against the best pitchers on the teams they would be facing in the playoffs.
2. I recognize that it was going to be difficult for the Brewers to obtain a real impact bat that would significantly improve the offense. part of the problem is the price to acquire and pay the very top talents (like Soto) and the fact that the Brewers are loaded with average hitters, so the upgrade in obtaining a slightly above average hitter might not be that great. In that case, it still would have made sense to acquire a right handed hitter who would offer a better option than Severino or Davis if they wanted to pinch it for Wong or Tellez. That could have been done without coming close to "mortgaging the team's future". I've seen enough cases of players like Randy Ready, Matt LaPorta, Louis Brinson, et al who produced wails of despair when traded but never became impact major leaguers.
I fully expected a deal like the Bush deal to prop up the setup portion of the bullpen. The Brewers do that every year and this team needed it. But, I look at exchanging Hader for Rogers to be a more significant downgrade than others seem to unless we assumed that Hader's recent troubles are a sign from a permanent fall from his position as the recognized best closer in MLB. And I don't see the erratic Lamet or the injured Rosenthal offering anything that will help this year's team.
Maybe the prospects obtained in the Hader trade will make this a great trade when looked at a few years from now. But for this season I see the Brewers moves as signaling that they recognize that winning the weak Central Division is probably the team's ceiling for this year. Even that may be tougher than it looked as the deadline approached.
ETA: I did not realize when I posted this that Lamet had already been DFA. So, as it affects the team this year, the Brewers traded Hader for Rogers.