I think Monk has many troubles in PvP (specifically Frontlines) but positions are probably the least of their worries.
Removing positional requirements for extra damage probably won't make much of a difference to their (under)performance.

Many times playing Monk you wish you could just hit the person at all, never mind how much damage you're dealing. At least Dragoons have Feint. But while playing Monk I'm tempted to leave Fists of Wind on all the time.

I don't like your suggestion at all.

Here are some suggestions that I think would help a Monk much more:

- Range. Where the hell is Chi Blast? We better get something like this from the Expansion or I'm quitting Monk for good. Right now Monk has to put themselves in extreme danger in order to deal any damage whatsoever. Don't you dare bring up Howling Fist either, as it has no purpose other than adding extra damage by weaving it inbetween global cooldowns in your combo.

- Mobility. Shoulder Tackle needs a massively decreased cooldown. And probably a closer minimum distance as well. Sprinting sucks because it removes your ability to deal damage whatsoever also! Invigorate and Enliven just don't cut it. Their cooldowns are too long for Sprint to be used Offensively. Our only choice here is Fists of Wind.

- More disables. Steel Peak is nice, but Haymaker and Weapon Throw aren't cutting it. Weapon Throw needs a naturally lower cooldown and Haymaker needs... like... an option to activate it without dodging to still slow but deal less damage. This is the only edge Dragoons have over Monks (Feint). Also when you jump on a White Mage, what's the first thing that happens? You get pushed back by Fluid Aura and bam, that's it, it's over, you're done. You have no answer to that. Against other classes, you get kited to hell and there's not much you can do about it. Again I defer to Fists of Wind, your only chance of catching someone since you can't disable them reliably.

- Durability. As I stated before, Monk has to put themselves in extreme danger in order to deal damage. Yet often they aren't tanky enough to do so. Shoulder Tackling into a crowd often means certain death. I think Monk could use some kind of new Defensive skill other than Featherfoot, since some skills just plain can't be dodged. A skill that reduces incoming damage would make much more sense here.