I'm going to still vouch for the reason they did it wasn't for anything to genericize it as much as to make it easier to organize.
Slapping Hand is an S spell now, not a B spell. A better example is that now Elistraee's (really annoying name btw) Grace, Elistraee's Eflugent Epuration, and Elistraee's Evasion would look like this on the summary list of spells:
Elistraee's Eflugent Epuration
Elistraee's Evasion
Elistraee's Grace
Now it looks like this:
Elfugent Uperation
Grace
Instant Refuge
These spells aren't related to one another other then some random person's har dot pronounce and spell name. And I'm more likely to remember what Grace does, then who's name is before it.
Flavor is all nice and good. But when you want to be able to find stuff easily, as little superfulous stuff as possible helps. ANd since a lot of these spells had peoples name in them, that made it harder ot organize more likely, since a lot of people simply don't know who the hell the spells are talking about, and it clutters things. Its like they did the whole thing where things like Lesser Restoration became Restoration, Lesser. Its easier to lay-out. And with names, i tlooks nicer to just cut them then to do the indexing thing.
I will note, though, that I do think Curse of Petty Falling is cooler sounding then Curse of Ill Fortune, but ah well.
Stuff.
EDIT - On rereading, it was Elenster for the second and third spells ti seems. Though, my point still stands. The naems are close and just simming htem, they seemed liek the same guy. That'd of been a frustrating case if I had to deal ith it in the book.
Ummm, more stuff.