Indeed, I very much admire HG Serapion and he happens to be my bishop.
I think it must also be understood that HG Serapion has a much larger problem than HG Muqattam. The US, especially in the extra diocesan areas, has been a hotbed for this Protestantization, which reached its nadir at St. Marks in Washington despite their rather good, traditional recordings of the liturgy of Ss. Gregory and Cyril and their rather traditional, as opposed to faux Greek, iconostasis, among established parishes, at least. The mission parishes are far worse. HG Serapion has allowed to my knowledge English only mission parosh but aside from an exclusive use of English and preaumably/hopefully a little Greco-Coptic liturgical spice, my understanding is they have no other innovations. The liturgy at Ss. Mary and Athansius, from which Coptic television is broadcast, is throughly traditional. But there is huge inertia here and contaminating influences.
Also I was told that in Muqattam the impoverished Copts primarily attend one large church, and before Anba Abanoub arrived this was literally being coopted by actual Protestant missionaries who had taken over providing servoces there to a certain extent, and in the midst of the crisis that was mentioned to me involving the deposed President Mubarak killing all of the local swine, and the harship this caused, the deteriorating ecclesiastical aituation slipped briefly under the radar. That is the story I got at any rate from one of the monks at St. Anthonys on a recent visit. There was much admiration for how His Grace had just put his most graceful foot down and with a strongly worded sermon, available on YouTube with English subtitles, and a sewming wave of his crosier (if this was of the double snake head variety it amuses me to think the emerald eyes would have at that moment flashed) put down the problem. Of course I am joking; it was in fact rather harder than that, in fact, probably so much work went into it that this will perhaps one day be regarded as grounds for declaring Anba Abanoub glorified.
HG Serapipn and his colleagues in North America however I think face the same problem that HG Abanoub did, but with the added complexities of geographical diversity (it would take a long time for HG Serapion just to visit all the parishes in his diocese...compare then the massove size of the Diocese of the South). Also the adjacent population being heterodox Christian rather than Muslim compounds the problem by creating a fuzzy barrier or the appearance of one to the parishioners. I believe more bishops are needed even if it requires temporarily depleting some of the monasteries (at least there seems to be no shortage of vocation). All churches should ideally be under a diocesan bishop and all dioceses should be proportionate in size to those in Egypt where possible, and each church should have at least one hierarchical liturgy per year.