The thing with Deva level gear is, you almost certainly have an external clock providing genlock, wordclock, and timecode as needed to the whole set. And if sync isn't needed, it isn't needed. A lot of times on set, TC is all you need, if that. But sometimes you need full clock-lock, so the top level gear at bare minimum all have WC. It's all you really need, a video ref is just for convenience to reduce gear. It's a very nice addition to the SD and Tascam gear I've seen it on. And I was maybe just overlooking it on the Scorpio since it was never a real contender for me.
I do sound production on film/video productions, as well as A/V production for concerts, and hobby taping. Three very different beasts, so I'm obviously not going to find something the fits all perfectly. But I already have a bit of gear, and still don't have all my bases covered. I recently (prior to the 'rona) had to inform a producer that I was going to have to run a cart with AC power or we'd have to factor rental costs into the production, because I didn't have an easily portable timecode solution for more than 2 channels. TC is very much still alive, even though I'll take Plural Eyes any day of the week (tweaking aside). A lot of my solutions (resolve TC from LTC recorded as audio, MOTU DTP, HD-P2) are not ideal for film productions where you need to hand things off quickly at the end of the day, you often don't have AC power available, and you need more than 2 channels a lot of the time.
Now, given my second use-case, if I'm getting a new recorder for film production, it better be able to stay in sync with my cameras (that have genlock and TC) for a full concert. I don't care about TC, I care about drift. As for my third use-case, obviously I'm going to use it for taping, and that has the least requirements (boo-hoo, I'll have to run my V3 analog only if I want to use it).
So... given all that, and what I've learned in this thread and researched further... I just pulled the trigger on a MixPre 10 II... wish me luck! Key is that it can clock sync just to LTC, just like the HD-P2 and old MOTU interfaces. Also, while the manual is pretty scant, it looks like you should be able to input TC through the AUX jack and still sync to WC on the BNC. Now... someone stop me from ordering a spidf > WC extractor for $175.