I think it's a great idea! I have a lot of younger siblings and they love fruits and veggies, so I usually don't get to give my rabbits the fresh stuff (its also really expensive right now to buy lots of fresh foods!). I'll probably end up doing something likes this for the winter (we have a big garden in the summer that I pick through for fresh stuff for my rabbits). Something else I want to do is dry some herbs to make mixes with.
Lennon the Bunny has never been my favorite, for a while I watched her videos for advice but stopped because not only was she annoying but really judgmental. I have caged rabbits that love their lives and I just started feeling judged whenever I watched her videos. I also can't really "free roam" my several unfixed rabbit in our house of two dogs and two cats. Nor can I mix my does separate litters together. Besides, Netherland Dwarfs (the breed I have) seem to be more aggressive with other rabbits they weren't raised with (unless you take the time to bond two together, of course). But, I have always found free roaming rabbit families lucky, having a rabbit that is with you all day sounds nice, haha!