Whats the point of applying Technical Analysis to cross pairs??

Technical analysis is not magic to predict where the price is going. Technical analysis is nothing more than analyzing emotions of traders and what are they doing , buying ,selling ,profiting..etc,

And not to mention that retail traders makes a small percentage of change in currency rates. And most of them trade USD pairs.

Example of what I mean: The EURO/AUD

Its nothing but the difference between exchange rates of the Euro and AUD. Retail traders may have small effect on the E/U and the AUD/USD , but very few of them will trade the EURO/AUD. So whats the point of technically analysing cross pair that has no meaning other than differece between exchange rates of two economies , europe and Australia. If you want to do technical analysis , do it on E/U and AUD/U during active market hours and small time frames. Thats my opinion but maybe I am wrong and someone has other opinion.

But this difference becomes bigger and bigger or
smaller and smaller.Technical analysis is to
look at your pocket and see that you cannot buy any more.
That is my opinion.

I trade the crosses frequently, because pairing the strongest currency/ies against the weakest results in the longest, cleanest trends. Both EURAUD and EURCAD proved very profitable for me back in Feb/March, and AUDJPY and NZDJPY a couple of weeks back.

You're correct, instead of shorting EURAUD, I could have gone simultaneously long AU and short EU, with much the same result. But I prefer to perform my intraday analysis on just the one pair.

I made lots of profit shorting the EU/AUD and EU/CAD. Because as you said , you sold weakest/strongest currency. You made your opinion on a fundamental reason. At least I did. If you short the EU/AUD based on any reason you would get money because it was going down any how.
What I don't get people using things like pivot points on GBP/JPY !! Floor and bank players don't use pivots with these pairs ,so pivots have no meaning with cross pairs.

I made a lot of money shorting EurAud and EurNzd.
I like to stick to one pair which is why I trade those two pairs over their major counterparts. Overall it is easier to analyst one pair over two in addition to the volatility increase with those Eur Commodity crosses pairs; more movement per pips with trading one of these pairs than it's two major counterparts.