What Bissell has done is to confuse his message. As I said earlier, he is reporting two problems and conflating them.
The first is the 'miscreants.' About them enough said - but I tend to include everyone here who moans about 'BSP has too many rules' in that category. Their land, their rules.
The second is that the hikers who arrive via that A-T have become too numerous for the limited resources of the park to handle; overflowing the capacity of The Birches and straining KSC. Since even most thru-hikers can't ascend Katahdin from Abol Bridge and leave BSP in a single day's travel, this means that they have to be accommodated either overnight or by putting them in touch with transportation - and both issues take up park resources. Bissell has stated explicitly that this is a problem irrespective of hiker behaviour.
If he is to be believed, the key issue is that A-T hikers are simply too numerous, and only controlling our numbers can succeed. If that were presented clearly, it would invite clever solutions. One proposal I saw involved the possibility of shuttle service to enable hikers to finish in a couple of day hikes without an overnight stay. Another, which is in progress, involves having hikers call ahead for a reservation from Monson, and speed up or slow down their passage through the HMW to try to level out the issue of too many arriving in a single day. And of course, there's the promotion of alternative patterns in which the hiker arrives at BSP in a less busy season.
But then he spoils the message by using chiefly examples from the 'miscreants' to show the problems caused by too many hikers. (Of course, too many hikers will bring along too many 'miscreants', if we assume that we can find That Guy in every sufficiently large group.) In doing so, he alienates many of the people who could help solve his problems.
His problems are real. If all we do is to close ranks and act defensively because he has chosen to publicise them in such an outrageous fashion, we all lose. Because then the problems won't get solved, and eventually we will lose access, not only to BSP, but also to many other overstressed regions of the trail. The land managers will simply decide that there isn't enough A-T to go around, and the only discussion possible will be how best to ration it. In the current political climate, the only acceptable solution will be to ration it by the imposition of fees so high that only a few of us can afford them, or by a permit system so restrictive that most will give up without ever coming to the head of the line. (This is already the regime, for instance, for rafting permits in the Grand Canyon. Many people go year after year without ever once winning one, until they either lose interest or are no longer able to pursue it.)
If we don't swallow our pride about the public tantrum and actually work on figuring out how to mitigate our impact, we are going to find that the obvious solution of controlling our numbers directly, either by fees or by lot, will be imposed on us. If that's what you want, then keep on ranting about Bissell. Otherwise, work on solving the problem. Think of it like trashing out a firepit or something. Most of us didn't make the mess, but if we don't clean it up, nobody else will.