You have pros and cons of summoning Embodiments.
In scoring there would be a qualm of to-collect-or-not-to-collect. If you summon an Embodiment and not die, you get all 100 IE back, in addition to extra graze possibilities which nets you multiplier and max-value Points. On the flip side, the pattern decided (originally) will be randomized, so depending on where you are in the stage and what pattern you get it might throw you totally off. If you bomb or die you lose IE and also some of the stored IE as well, which altogether would be worse than just collecting all the IE in the first place. It will require planning, that's for sure.
Survival on the other hand is simpler, but you still have a decision to make. If you want lives or bombs you do need to summon Embodiments, but you can't bomb them all because if you kill them you get bombs back (redundant gain), and if you die while trying to survive to get the life piece the result is the same, redundant. If you kill it as soon as possible you get your bomb piece quickly, which is the method with the best danger-reward ratio, which encourages people to bomb more. It's all if the player decides whether or not they want to take a risk with the stage, in both scoring and survival. It's just that the reasons for doing so are different.
An experimental part of the power formula is also based on getting you to bomb. When you die, the amount of power you get back is (bear with me, it's more simple than it looks)
floor(power) - ((1-bombed)/2) + ((10-lives)*0.05) - 1
Where power is the amount of power you had when you died, bombed is 1 if you had bombed before and 0 if not, and lives is your current lives (after death), unless you have no extra lives in which case you just get 4.00 regardless. Let's say you have 3.15 power, you hadn't bombed and 4 lives after death. You'll get 3 - 0.50 + 0.20 - 1 = 1.70 power. If you had bombed you would get 2.20.
Anyone like this idea?