You do know that Diven Veil and Shake it Off work differently, not only in the sense that DV needs a healing spell to be proced, right?
I checked the english tooltips and they're not that clear on that matter as the german ones, but (unless those tooltips are wrong, I never tested it since I dont play warrior that much), the difference is as follows:
Diven Veil gives you a shield thats based on the max HP of the paladin using DV - so if the paladin has 110k HP everyone in the party will get a shield for 10% of that, so 11k.
Shake it Off on the other hand is based on the max HP of every individual target and gives them a 12% shield for their max HP (at base). That means if we have, lets say a BLM with 72k it lookes as follows:
Base Shake it Off: ~8640 shield
One CD (14%): ~10k
Two CDs (16%): 11.5k
Three CDs (18%): ~13k
Both the paladins and the BLMs HP are realistic at the current point and while its obviously not as easy to say since it always depends on individual HP, its pretty safe to say that DV is better than basic Shake it Off and maybe even than Shake it Off+one CD.
