There is a lot of "Owl... doesn't seem to proc much for me..." 5/10/15 % is exactly 5/10/15 % no more no less. So if X mob hits you 100 times it will proc 5/10/15 times.
The more valid reason is that you're simply not getting hit enough for the 5/10/15% to be worth it. Honestly there is a certain set of mandatory points you have to have and the rest is fillers based on personal choice. Stop trying to justify your personal choice to others, they will most likely not agree 90% of the time. That's why they are personal choice/taste. We all raid/play at different levels and most of us, with a little help/info from others, can adjust to make things work for us.
http://talent.mmo-champion.com/?drui...u,F8SROe,10952 with 3 leftover points is pretty basic. Imp. MF. if you have 2 pc T9.