All you have to do if you break one of those flips is use a shim to keep the cable pressed against the contacts on the motherboard. The plastic grip on the cable itself is ironically usually the perfect thickness for this. Cut off the plastic grip and use it as a shim and shove the cable into the connector. It works like a charm.
When I have to deal with this stupid WiFi cable connector, I often vent my frustration by fantasizing about going back in time and murdering the guy before he's able to invent it, thereby doing the world a great service.
I've found these aren't really strong enough. I use a metal pry tool, this one specifically: