Deflecting Swat basically allows you to tap out for your commander without having to equip Swiftfoot Boots
If it werent, or if they still had the banned as a commander distinction, Im confident this Sultai commander would still be legal, since Narset, Parter of Veils is essentially doing the same thing
Finally, as the planeswalkers we chose, we have Geyadrone Dihada as well to give us health, Liliana, Dreadhorde General to create blockers or remove creatures and give us eventual card draw, and Teferi, Master of Time to recycle our hand, phase out problematic creatures and possibly give us 2 extra turns
508.1b The bottom half of a flip card contains an alternative name, text box, type line, power, and toughness