Sometimes the best move is no move at all. The Giants are not losers for mostly staying put at the deadline. Let's make that clear. Plus, they did add Anthony Banda, who recently was DFA'd by the Tampa Bay Rays, an hour and a half after the deadline passed.
This is a team that is good enough to compete for a playoff spot this season, and is set up really well for the future with top prospects on the way. They aren't losers and they aren't winners. But making a run at the postseason this year got a lot harder. The NL is up for grabs, and most teams in the hunt, aside from the Giants, added to their roster.
There's no reason to freak out. Just know a lot of other NL teams got better on Monday.