Whilst I agree with your point about that handball should be defined in terms of gaining an advantage (and defined the same for defenders and attackers), in this case under the current laws, I think Mark Clattenburg's view has merit. Whether Silva's handling of the ball is deliberate or not, it does deflect the ball towards TAA (arguably) within close proximity and this is an exception to the unnatural position criterion for a deliberate handball? If that is the case, then even if Silva's handling is deliberate then TAA has not committed a handling offence and so playing an advantage is ok.
I've just taken another look at the video and would make the following points:
a) the deflection off Bernado is not very great and takes the ball slightly away from TAA;
b) it is around 3 to 4 metres away and TAA has a good view of it;
c) shortly after the deflection TAA's arm is bent at the elbow with his hand in front of his waist but at the point of contact his arm has straightened and is at about 45 degrees to his body.
I can't see any argument for ruling it as not deliberate.