Yeah me same, but I still join any ragnarok I found on my raid list, gotta gacha as much as possible LOL.
The SSR do drop from, mostly expert raid. I got around 2 drops out of like over 200+ expert raids, 1 weapon and 1 eido
I have not got a single SSR drop from ragnarok thought I get mvp like 10 times so far and around the same number as second mvp.

Though gotta love sometime the snatch works super well and u receive over 20+ items from ragnarok.

On progress to LB the 2nd weapon, eido, =)