One side benefit I have learned from Matt’s books is that cross-training an injury has both a short term and long term benefit. The short term is obvious: you’re continuing to be able to maintain some level of fitness while your injury heals.
But the long term is that you’ve just added another arrow to your quiver, a new activity that can sub in the future for an injury, or just a way to add volume safely by cross training. I’ve never been able to catch the bug with regard to rowing myself, but I’ve learned to enjoy cycling, uphill treadmill walking, and the Elliptigo all through introducing them as cross training rehab for injuries from running.