I mean sure, they could always get more, but not before the AR customization pass. Giving Blood Elves more options before Void Elves and the other ARs got their new options would be favoritism. Same goes for any other core race. Nightborne are also overdue, and in much more dire need of options than Blood Elves.
I guess after the ARs get theirs, maybe Blood Elves can get some Venthyr Kael'thas style options or something. But don't forget, they also got a freebie option with the holy options back in BFA. Only Night Elves were graced with a similar option, but I think Night Elves are also probably pretty good for the moment too. They got some of the most, if not the most, options.