Galloway has this weekend down as the last long run before Tink so I'd say if it feels right to you, do it! His program had 14 (but I only did 12) and then 4 on the next 2 weekends before the race
I also worried about it being too long between long run and race. I've decided that today was my last long long run. Next weekend I'll do 8, and the final weekend I'll do 6. I'll feel more confident with those medium distances vs just doing 3-4 for the last 3 weeks. But I really don't want or feel I *need* to do another 12+
I'm no expert, but that's my plan.