Balance, Arrow, Spear were all straight dps gains, bole was an indirect one as it allowed less healing needed thus slight gain on healer dps, Ewer was for mp or RR, Spire was nigh useless in SB.

Fishing for old ast was like this 1/3 chance for Ewer/Spire for RR then 1/2 chance or 1/6 for pure optimal(good ast really would care about the 1/2 rather than the 1/6)
so odds on happening = 1/3 x 1/2(1/6) = 0.167(0.056)
Now add in redraw = 2/5 x 1/2(1/6) = 0.2(0.067)
1/3 x 3/5(1/5) = 0.2(0.067)
2/5 x 3/5(1/5) = 0.24(0.08)

Fishing for new ast is garenteed 1 seal, then 2/3 chance for next useful seal then 1/3 chance for last seal.
So odds on happening = 2/3 x 1/3 = 0.222
Now add in redraw = 4/5 x 1/3 = 0.267
2/3 x 2/5 = 0.267
4/5 x 2/5 = 0.32

They made the system more reliable by a good chunk but at best your still working with a 32% chance you will get Divination with 3 seals by the 3rd draw with a redraw on the second and third draw, so 68% of the time you will be fishing for that last seal and unlike the old system while having a lower probability to achieve an aoe Balance/Spear/Arrow, this new system seems far less impactful when you get that luck, something SE should look into sorting out.