I agree, it won’t hurt to try it out. I think every DAW has a learning curve and once you work with a few, you will probably think they are all similar in many ways. That video you linked points out a few of those aspects that are unique to S1’s workflow but what I loved about Reaper is the amount of customization possible, I mean you can dive deep into the rabbit hole and tweak everything you want to work just how you need it to. I have been using S1 Pro and with Presonus, that means spending extra to get everything they offer to make it worthwhile but oddly enough it’s the only DAW that gives me perfect latency performance (zero latency ) that I couldn’t achieve with the other DAWs. Their newest release added exchange for sharing send/return settings, macros and related. Also, it’s almost IMPERATIVE to purchase their software when on sale to get the best bargains.
Good luck!