Uh...look, people fear double FOC because they think spamming riptides, or whatever it is you fear is the way to win things. It's not, you can take 5 Riptides now, if you really want to, and it's not that great (the O'vesa star is a very different thing, manipulating LoS! and unit buffs). I only use one, and I do pretty well.
You can take 9 vendettas now, if you want, people don't, and taking 18 isn't any better.