Truthfully, they're probably even better suited to it today than when this was normal.
In 2011, the FIA created Group RGT in order to bring GT cars and more privateer teams that didn't have the budgets to compete with top-tier works teams more into rallying. Porsche 911s are about as popular here as they are in basically any racing series where they're allowed, especially the Type 997 911s. In the following video, Chris Harris is taking a look at the Tuthull Porsche RGT car, also a Type 997 911, and (no surprise here) he absolutely loves it.
When you see just how great the thing is in the mud, you even be given over to wondering why the 911 ever stopped being so popular in rallying.