Light x-winds....it really doesn't matter which technique you use. Yes you can even land in a crab. Won't be pretty.
However, in high/gusty x-winds if you simply "kick out the crab in the flare" with no ailerons or leveled ailerons you will drift downwind. This technique is dependent upon you making contact with the ground ASAP, if you're to keep it on centerline. If you float in the flare, you will drift off centerline. Aero 101. Once you've drifted from centerline you can't get it back that close to the ground. You must accept an off centerline landing and correct back on rollout or go-around.
I've tried this "decrab" technique and have found it to consistently result in a lot of dancing on the rudder peddals, drifting, and poor landings with the shimmy and shakes. You can go ahead and try this technique, but those who advocate it haven't tried it in high x-winds/gusts. In these conditions, you simply MUST go wing-low, whether you've done so consciously or not if you're to keep it on centerline.
Master the basics! And the basics are wing-low and landing on the upwind wheel in high gusty x-winds. Do it the same way everytime.