Washington is making the right trades and trying to get players who are still in their prime, while Pittsburgh is trying to build the oldest team around Crosby and Malkin.
Surely only the trolls are angry about the Capitals' recent deals. If Ovechkin breaks the record it will be a massive bragging right for the whole franchise. Their fans are happy to see a historic moment. The owner is rubbing his hands about how high he can raise the ticket price when Ovechkin gets close to the record. As ratings drop, the league is also happy because it makes the news and at least there's something to talk about.
Washington has shown great loyalty to its players. They signed Backstrom to a massive contract when his body started to fall apart to compensate him for being underpaid for the previous 10 years. Backstrom even fired his agent, certainly the owner assured him that contract negotiations would be conducted in good faith.
While Pittsburgh tried massively lowballing Malkin. It required Crosby to step in and talk to the executives and say "hey guys, stop doing the clown show here, get this deal done". Even $6.1 million/year is an insult from Malkin's perspective. The guy has shown a high level of loyalty over almost two decades. He could have easily said early on in his career, "okay guys, we won a cup, now I want to get out of here and play for a team that is built around me, it would help my career & my fame and I could make more money". But he stayed (in Crosby's shadow) and helped win 2 more Cups.