There is no mechanic in this game that prevents flank/rear unless it locks you in place (eg bind in T8), forces a specific movement (eg shriek in T7), or stops you all together (gaols/conflags etc). As for T11, most strats I see have tanks teathered in front obviously, and, lets say tanks are north or 12 oclock, other 2 groups on the flank/rear split around 8 and 4. That places non-tanks essentically on the line of flank/rear which is the exact place mnks and drgs want to be. If your group is forcing you to stand off to the side 90 degrees at 3 or 6 and never move then work with your group. Its doable.
A drg rotation is essentially broken into 3, 20 second blocks before repeating. Each 20 second block is 8 moves. If done perfectly HT is on when you actually re-use HT, Dis is still up when you acutally use your next Dis, you clip CT by 1 GCD all because we stopped using fracture when drg got buffed way back when. This means if you miss HT 1 time, you will only delay by <2.5 sec meaning that the worst thing that happens is HT falls off right before you do your new HT, but is still on for everything else. Same with Dis. 1 whiff actually prevents the 1 tic CT clip. The worst thing that happens is a single GCD (the reapplication of HT or DIS) will not have the effect on the actual HT or DIS, but it will be up for everything else. Unless you miss 2+ in which case it falls off 1 GCD earlier for each whiff and then might start to fall off on your TT or whatever. Again the avg pot per GCD is about 260. Whif=100. with possible loss of either Dis or HT on the next Dis or HT. If its HT you loose 20% of 170. 17. if its Dis you loose 11.11111% of 220. ~25. 260-100+17+25=202. I stand corrected. it isnt under 200 its basically is 200 (unless its the opening one where you have no buffs up in which case its closer to 180). Again, more numbers less 'feeling' about how much it hurts you. You dont like what i say? Provide a better calculation. Dont just blindly parrot "buffs fall off and thats a lot of damage you loose". SHOW me how much damage you loose.
As for the offensive buffs, they get used on cooldown 99% of the time unless you save for a specific burn phase (or not using it during a phase like B4B during AOE damage), or its the opening salvo. Beyond those 2 singular exceptions you should hit them on CD. Whiffing a HT mid fight has zero correlation with holding buffs. Messing up with buffs up always sucks. Ever bunny a kassatsu raiton with B4B up? Man that feels horrible. Just wasted your best CDs for nothing and delayed your GCDs performing it.
Again, ill reiterate my stance that the complaint is lack of deeps and/or lack of utility. Im not opposed to a buff to address these issues. I AM opposed to positional easing because (as shown above) it doesnt drastically ramp up drg ST damage, and we all agree it doesnt do squat for utility. 5 Positionals a min are the the only thing drg has regarding gameplay mechanics that take any thought at all and i dont want to see it dumbed down when the removal does NOT address the actual gripes with drg.
Again: Show that positionals easing dramatically buffs Drg ST damage enough to 'fix' it (numbers Prz. Not rhetoric), or that they help utility. Otherwise There is no rational argument that easing positionals addresses the actual gripes about drg. Its just easier for the sake of easier without addressing the problems people have with drg. Everyone has already stated plainly that drg doesnt even do enough dummy damage when you DONT mess up positionals. There is a logical whiff connecting "Drg doesnt do enough damage on dummies when landing positionals vs mnk/nin" to "Drg needs easier positionals because its damage sucks to keep up with mnk/nin". It makes no sense. Buff utility /thunbs up. Buff damage /sure i guess. Nerf positionals..../wtf?