Let's have a brief conversation. Why are the baptist-folk (non-denom inclusive) melting down over this brother's reasonable ascendance into the Anglican Way? Here's why:
Baptists are extremely dependent upon "great personalities" for their sense of communal cohesion, doctrinal stability, and moral authority. This is because they have a very weak ecclesiology, practically no *established* hierarchies, no proper ministerial class, and an extremely fragmented tradition incapable of providing a sense of unified identity across time, place, and culture.
So they need to make up for these deficits with strong men—faux bishops—of either a charismatic pastoral class, a credentialed intelligencia class, or a boistrous apologetic class; or some combination thereof. While Baptists tend to be gleefully argumentative, their disproportional confidence in such bantering and bickering is largely rooted in the personalities whom they acknowledge and revere to be significantly more intelligent, knowledgeable, charismatic, morally upright, or witty than themselves. They look to those who have done the "heavy lifting" on the complicated issues and have signed off on the "correct positions" to be held. And so, regardless of any one person's competency (or lack thereof) on a subject of controversy or essential piety, they sit comfortably knowing that they have guys who have worked things out. Yes, this is a faux magisterium.
This works for them until it doesn't. The brittleness of this dynamic is made apparent whenever one of these "great men" are exposed in moral failure, embroiled in controversy, apostatize, convert to other traditions, or (in some cases) die. This is because a pillar upholding the collectivized ethos has eroded and destabilized the edifice. Depending upon the level of confidence and veneration someone invested in the personality—combined with other attributes such as personal neuroses and obsession with epistemic certainty—it can cause social friction, demoralization, angst/trauma, or even a full-blown faith crisis.
Note that everything I've described can happen in any tradition. But the baptist/non-denom world is uniquely challenged and predisposed to these structures and stress cycles forming with essentially no mitigating factors in play.
This is why Baptists can get so abrasive, acrid, and even outright hostile and condemnatory whenever one of their "great men" fails them—because they feel betrayed, wronged, traumatized, etc. It is akin to a rock knocking down a hornet's nest. Anyhow, pray for this brother because he apparently had a big hornet's nest hanging on him.