What is amazing is that a lot of CPU patches are not available until May!!
I think it is bad form that Oracle release an advisory telling customers to patch their databases but for many customers they will have to wait around 13 days and some almost one further month for the patches to be available. I remember that the January CPU had many more fixes but I don't remember that as many platforms had delayed patch releases.
It is not really a quarterly patch schedule if the patches are not available quarterly for some customers. I think Oracle should have delayed the release of the advisory as roughly 50% of the patches / platforms listed have delayed ETA's. It is hard to comment further without detailed knowledge of how many customers are on each platform / version.