How does Kensai Fighter training react to Fighter feats that aren't weapon specific?

[Canthin]

So... at 7th level, the Kensai Magus gains this ability:

Fighter Training wrote:

Fighter Training (Ex)

Starting at 7th level, a kensai counts his magus level –3 as his fighter level for the purpose of qualifying for feats (if he has levels in fighter, these levels stack), but forfeits the benefit of such feats with weapons other than his favored weapon.

And at level 10, they get this ability:

Fighter Training wrote:

Fighter Training (Ex)

Starting at 10th level, a magus counts 1/2 his total magus level as his fighter level for the purpose of qualifying for feats. If he has levels in fighter, these levels stack.

After searching the forums for a while, it seems this means that a 10th level Kensai is considered a 7th level Fighter for feats relating to his specialty weapon, and 5th level Fighter for feats with other weapons. So my question is what about feats like Disruptive? If the Kensai takes the feat at 9th level, do they get the benefit from it only when wielding their special weapon even though the feat isn't weapon specific?

EDIT: Oops, I meant for this to be in the Rules Forum.

[kestral287]

Well, realistically if you want Disruptive you take Extra Arcana: Disruptive.

That said, if it's a feat that doesn't intrinsically use a weapon, such as Disruptive, it should be fine as an always-on. You don't use Disruptive 'with' a weapon, after all.

But if you want to use Critical Mastery, which only works when actively using it with a weapon... yeah, favored weapon only.