Part of the problem may be our use of the term "out of bounds". We use it for a boundary, but also within the field of play, for hazards that may cross the fairway (creeks, roads) or be completely within it (ponds, other areas). I'm not sure about golf, but can't think of any other sports where out-of-bounds may be within in-bounds.
We use it as a course design feature. In the majority of cases golf applies it for course boundaries. You nearly always have the option in golf to play your shot from where it lies be it a creek or lake. The difference of a sport played from the ground and out of the hand where play it where it lies isn't quite so relevant to us as we never do.
With that in mind having a rule that allows a player to take a stance OB opens up the need for further clarification. You can't ever say it is ok for a player to take a shot from off the property so if taking a stance in designed OB was allowed then expressly banning it on any course boundary areas would need to be done. That's either a hassle to a TD or requires new terminology in the rules.
IE. Change design feature OB to some other terminology - eg penalty area. You could then have a Hazard penalty area (you can play from within the area with a stroke penalty) or "lie change/relocation area"* penalty area (you play the area as current OB rules but can take a stance within but you have to relocate your lie with stroke penalty)
OB would then only designate a course boundary or some other area like a nature reserve area in the course that keeps the current rules but hopefully will be rarely involved.
Embracing the idea of a penalty area over Out of Bounds is probably a step the sport needs to take. Use Out of Bounds for what it should represent - an Out of Bounds area, get the hell out of there, it would hopefully encourage designers to use course boundaries less as a design feature(a bad design feature in general for the sport in the future, don't upset your neighbours!)
With all that said I don't see the issue with the rule as written currently and a meter is plenty distance enough however tall you are. Your front foot doesn't have to be on the lie, a patent pending is an allowable stance amongst infinite other variations of stance to keep you a long way from the fence/wall. Just because it's not the stance you would choose is irrelevant, don't throw your first shot into a pinched off area if that is your concern.
On that note I've always been dubious of giving an extra meter from barbed wire. Having a concept of where your arms swing and taking a stance that allows you to not hurt yourself should be on the player not the course set up. We have an infinite number of ways to take a stance and throw the disc, we shouldn't expect players to get a perfect lie every time their discs lands especially when they are off the fairways.
*please come up with better terminology!