Guild Wars 2

If you want to use 10/10/0/25/25 and boost blurred frenzy:
The Phantasmal Fury is not needed that much when u use berserkers equipment and phantasms shares crit chance and crit dmg with you so swaping it for Sword training is not a problem.

GS vs IC:
About that GS training – we use GS primary to summon that phantasm so we need to lower its cd, in this way theres no problem giving up GS training and spending more points in Illusions to get IC (the reduction is the same – 20% and u cant get both anyway)

About runes:
If u want to do as much dmg as posible – dont use runes, use Ruby Orbs
If u want to buff your party a bit more (which is not necessary if u run with warriors) use Runes of the Pack
EDIT: Runes of Lyssa are also great choice since u can spread all those buffs around using Sig of Inspiration.
Personally I dont see any use for those runes presented in the video above when they have lower crit boost then Orbs.

My conclusions:
After a bit of testing I can tell that the build 0/20/0/25/25 is better in dps than 10/10/0/25/25
The second build lacks that bleed from crits which does more dmg than +15% direct ph. dmg

that 0/20/0/25/25 build seems completely logic for me because:
the key of phantasm mesmer is to keep up phantasms as long as possible, but also to get them up as soon as possible.
However good at timing u are, that phantom will finally die anyway and it is better to get another up asap instead of w8ing next few secs for cd.