The main reasons for me going for an iPad rather than an MBA13 (MBA15's weren't a thing yet) were:
- I already have a perfectly competent 14" M1 Max and didn't want to manage another laptop
- I also needed to upgrade my iPad at the time (the screen on my OG iPad Pro 10.9 was circling the drain), and I end up using Sidecar on the road a lot.
- Running a laptop off the side of a tripod is awkward, even though I used to do it all the time on an Inovativ DigiPlate, and you almost never need to use the keyboard on location anyway, so it's basically extra weight/opportunities to get banged around
- An iPad, particularly in a case, is much more tolerant to the occasional rain/splash--I work in the Pac NW and sometimes end up working outside in the wet.
Since I'm experienced enough (and script it anyway to apply all my LCCs after the fact), not having LCC support on the iPad isn't a huge deal, although I sure wouldn't mind it if C1 added it in. The biggest things I tend to miss are guides/grids, overlay, and focus indication. If I didn't already have a decade of tech cam under my belt to the extent that I can pretty much previz how LCC is going to affect an image (I'm shooting the Schneider 35 and 43, and the Canon 24, as my main lenses on a Cambo WRS), I'd be one to strongly consider either an MBA13 or a Surface just to be able to live preview LCCs and do focus indication. Since none of those things are deal breakers, the iPad is super convenient and gives me all sorts of convenience on the road that a second laptop wouldn't.