I agree for the 3.3-18x50, the SCR2 is so thin. I own the 5.5-30 and I actually like the SCR2 reticle in that design, makes me think the reticle was designed with the 5.5-30 in mind, and they adjusted it for the 3.3-18 but to me it is too thin for this mag range. Given the crossover nature and DMR style use of the 3.3-18 it could really use a thicker reticle and I know the SCR is available but again, for the use many would like for this scope, a tree would be nice so getting an SCR3 that is thicker and illuminated would be ideal. But this is all personal preference and like birddog mentioned, if the non-illuminated is selling so well and it would require taking down production of the existing model to make the illuminated model then I can see why Burris has made a decision to not do that right away.
Yes, it's possible Bushnell or Vortex (or ?) could come out with something that matches or exceeds the design of the 3.3-18x50, but until we actually see that, I'm not going to hold my breath for it. If birddog is right and the illuminated 3.3-18 makes it within 2021, I still think it will be the best under $2k budget short scope design with regard to glass and FOV.
What is sad (for me) is that the 3.3-18x50 would be the ideal scope for two of my rifles, but I will not get them with the non-illuminated SCR2 reticle for the above stated reasons, that could be two additional sales for Burris, and I'm sure I'm not alone as this thread attests, so while Burris has chosen not to release illumination due to popularity of non-illuminated in the 3.3-18, I also wonder how much they have "lost" with that decision. Just some thoughts that don't actually matter because Burris is going to do what Burris is going to do regardless of my decisions