Preface: There are more stamplars out in the game right now than ever before, primarily due to the fact that they are the new "easy dps class." I am writting this post to do a few things.
1: Remind everyone that just because someone is playing a stamplar, it does not mean they are a bad player. People mained templars long before the buffs to advancing yokuda.
2: Not all stamplars will be using a bow backbar, because with the addition of Vateshran Hollows, there is a new viable replacement for the bow backbar.
3: With the possible exception of Veteran Aslyum Sanctorum, all content can be done with having at least 2 ranged dps and the rest stamplar.
The new Frenzied Momentum 2h weapon reads as follows:
(1 item) Adds 877 Max Stamina (Perfected Only)
(1 item) While Momentum is active, casting Stamina abilities generates a stack of Frenzied Momentum for 20 seconds, increasing your Weapon Damage by 38 up to 5 times. Upon reaching max stacks, your next Heavy Attack will consume all stacks and release a violent explosion of energy around the target, dealing 9132 Physical Damage to all enemies within 8 meters.
What this means is that casting Momentum allows the generation of stacks for 20 seconds, and then those stacks persist for ANOTHER 20 seconds. This means that a class that is usually monobar can utilize a brilliant buff once and have it last for 40 seconds, which is longer that most trash pulls anyways. This results in a much higher overall parse, as much as 3-5k more damage in my own experience. In addition to using a 2h weapon for this buff, it opens up all the bonuses of having access to a greatsword. Using the charge ability allows me to get a full weapon power enchant proc, as well as helps me maneuver the battlefield faster than anyone else. This is usefull in cloudrest crystals, bosses that teleport, and cheating snares like eclipse field in Maw of Lorkhaj. Another benefit is that it grants the stamplar to be comparable to any magicka dps in terms of survivability. With the 2h, you can use momentum to heal yourself for large amounts instantly, instead of relying on the slower vigor heal. Additionally, if you need a damage shield for something like veteran Kyne's Aegis, you now have access to a powerful one in the form of Brawler from the 2h skill line.
As a side note, not that I would recommend this as a main strategy, but a stamplar can use their charge ability to hit orbs in cloudrest without popping them. So that can be done in desperate situations.
This post was prompted by experiencing several veteran trials where the raid leaders assumed that all the stamplars were hindering the trial because of their melee only capabilities. This is not the case. Yes many people are playing stamplars for the first time this patch, and if they are not able to adapt the most flexible stamina dps toolkit to do those trials, that simply means they need to do more research and gain more experience. It is not a failure of the class as a whole to be able to do difficult content.
An example of this is in the Maw of Lorkhaj trial's first Boss. Usually you require 4 melee and 4 ranged dps. We had 6 melee and 2 ranged. We solved this problem by roll dodging out of the stack when we were about to get cursed, and wrapping around the boss 260 degrees during shield phase. Stamplars can also utilize echoing vigor at the start of shield phase to make it VERY difficult for the mechanic to kill anyone before the shield is destroyed.
Whether you like it or not, you will likely be seeing more and more stamplars out there, at least until they are inevitably nerfed in some way or another. I think its great that lesser skilled players are now able to get into late game content finally, and they should not be turned away simply for being a stamplar. And if someone IS using a 2h with frenzied momentum instead of a bow, they are likely much more educated about the class than others, so please stop assuming otherwise.