I know what you mean, but it's also the first game of the season. We have zero pass rush RIGHT NOW. We have a bad secondary RIGHT NOW.
The one thing I'll say about the secondary though... with guys running free like that, it seemed to be more of blown assignments and people not knowing where they're supposed to be. That seems fixable. I'm a little alarmed with Baker looking like he's a step behind and not getting his head around... but also, these guys are press corners that Bettcher was lining up 10-15 yards off the LOS. Hopefully Betch learns his players better and the players learn the scheme.
Also people keep complaining about the pass rush and they should... there was no pass rush. However, two years ago with JPP and Olivier Vernon eating up 1/3 of our cap space, there was also no pass rush. Most teams have no pass rush against that Dallas O-line... I wouldn't take too much out of that yet. If we're still complaining about the rush after week 4 or so I'll start to be alarmed, but Dallas isn't a good barometer of how much your team is going to pressure the QB.