I think that SBRs excel at the same distances RDs excel. If you like having a short AR with a can or something to go out and shoot at a few hundred yards just for fun, a LPVO would be a great choice, but if it is a serious use or personal defense minded rifle, I think sticking with something like an Aimpoint would be better. For me, the purpose of an SBR is improved speed, maneuverability, and internet cool points
, and LPVO slow you down with the whole eye box thing in addition to adding a good bit more weight to your setup. So you are basically working in both directions and end up with something that isn't optimized for short distance or for longer ranges... it is just kinda meh at both.
I personally rather have something that excels at <250-300y and isn't ideal for anything past that, and something else that is meh in the <250y range but excels at 250-600ish. Then I can choose which rifle I am going to take out based on my "mission". I own 2 ARs... a personal defense 10.5 with an Aimpoint, and a 14.5 with a 1-8x to hunt pigs with and to shoot paper at longer ranges.