remember that the way they travelled around in star trek has been refined over the years. in tos, if they want to go to the centre of the galaxy then no problem, they go.
they did a lot of stuff back in the early days without worrying about the mechanics. if you watch some of early TNG you can still see ther have not nailed down the distances correctly as they often say stuff that is totally wrong in comparison to voyager.
"As evidenced in the chart of onscreen data, actual speeds represented by a warp factor have not always been kept consistent throughout every Star Trek incarnation. Warp 8.4 would appear to be much faster than warp 9.9 or even warp 11. In fact, given the cited speed of warp 8.4, the Voyager crew (having some 70,000 light years to travel) should have made it home in approximately 33 days, not 75 years. And at Warp 9.9, at the above cited speed, Voyager should have been able to reach home in a little over 3 years."
33 days hmm? Maybe tom was not as good a pilot as they all thought.
I hope the barrier just becomes one of those forgotten things that happened and then didn't happen anymore. It was ridiculous enough in canon, but what happened with it in a particular book that we also shall not name gives me migraines.
There are several books that are considered apocrypha that present several insight on the Galatic Barrier Theory.
The first were the Preservers, better known as the ancient ones. It was believed in order to stem the threat of the Borg, the Galactic Barrier was created to prevent a primitive form of the borg from assimilating everything in its wake.
The second theory in regards to the apocrypha:
It was created by the Q Continium - Though I believe the book made reference to the Great Barrier at the center and not the Galatic Barrier. The Q imprisoned "The One" in there after "The One" and the "O" ran amuck in eternity past. At least thats what I remember reading about.
As to the OP:
I think a FE regarding the Galatic Barrier in STO would be a nice idea, if they can make it right. So I do recommend to the Devs that a FE be created involving both the Galatic Barrier and "Q."
We need a "Q" FE and one that involves the Galatic Barrier would be an excellent one.