They've expanded their Spark product to include video and what seem like presentations. Their initial product is similar to canva, but they're more focused on social design postings which has very little money in it.
Canva on the other hand has expanded their offerings, which includes the buying of credits on their app for purchasing images for their designs. Adobe is trying to sell cloud storage through the apps, which makes very little money. It looks like a bad corporate decision to expand their cloud storage business, but Adobe Spark can be so much more.
If Adobe were to integrate Adobe Stock into Adobe Spark, a natural coupling... Adobe Stock could see some nice growth and Adobe Spark can become more useful. A win win for both products. And contributors can see a bump in Adobe Stock/FT income. Apple taking a 30% cut of the IAP credits may be what's causing Adobe to be hesitant, but they just may have to bite that bullet on that one.