I agree and disagree. Hit rating is very important, but I agree that in many cases, depending on what gear/gem options that you have to tradeoff between to get fully hit capped, that just being close (within 4 to 5 HR) can often result in better DPS that getting fully capped. This is a case by case basis though and not a hard and fast rule.
Sure the pauldrons are good if you need the HR from them; however, there are many better DPS shoulders, including the s2 (and s3 if you have the arena rating),
[Shoulders of the Hidden Predator], and
[Gronnstalker's Spaulders]. All of these, with the exception of the s2 shoulders have much better DPS and all have at least slightly better to much better EW AP benefits.
Here is where you are providing some major misinformation. At least for my 0/20/41 spec (which of course has higher crit rating than your spec) and other gear,
[Berserker's Call] is so much better than
[Tsunami Talisman] and
[Hourglass of the Unraveller]. It has 7.1 and 10.0 better DPS and 0.6 and 0.5 better EW AP, respectively. I agree that
[Hourglass of the Unraveller] is an awesome blue but even
[Bloodlust Brooch] is slightly better for me as long as I am using it frequently. Unfortunately, I do not have
[Tsunami Talisman], which is better than
[Bloodlust Brooch] for me, or else I would be wearing it along with
[Berserker's Call] as my trinkets until I gear enough to start doing a 2:1 rotation.
If I use your spec with my gear,
[Bloodlust Brooch] and
[Berserker's Call] are even more better than
[Hourglass of the Unraveller]. They have about 4 and 11 more personal DPS at a lost of only 0.7 EW AP for overall raid DPS gain.
I also like the fact that I can control when I use these trinkets to use them in conjuction with haste effects to get even more DPS gains from them.
Hence, many of us have very valid reasons for using trinkets other than
[Hourglass of the Unraveller], especially considering how much better
[Berserker's Call] is for most hunter spec and gear combinations.