The principal problem with this altar, and which intuitively makes many Trads question its fittingness, is that it lacks a baldacchino, or ciborium. If you take the altars of the Roman basilicas and remove their baldacchini, they will look much like this altar here. Therefore the issue isn't the altar itself but its lack of a canopy. Without that vertical element, it looks disproportionately miniscule and flat. I have already addressed this point extensively in a previous post, so I apologize for beating a dead horse:
https://www.cathinfo.com/sspx-resistance-news/new-seminary-altar-is-table-youtube-video/msg861168/#msg861168It should be recalled that in cathedral, collegiate, and chapter churches, the norm is to have the Bl Sacrament reserved in a side chapel, not on the high altar. But this is none of those types of churches. But traditionally a Bl Sacrament altar should have a ciborium, just as one processes with the Bl Sacrament under a canopy of some kind.
It is indisputable that the mind of the Church and the entire Roman tradition hold that a dignified canopy should be included for the high altar, so as to emphasize the majesty and sublimity of the Holy Sacrifice. It provides a vertical, visual element that parallels the supernatural verticality of the Mass. Remove it, and you literally flatten the altar and symbolically flatten the Mass. Why do you think the modernists removed the canopy?
The earlier designs of the Immaculata included a tester, which is fine although not as nice as a traditional ciborium. It was later removed. I've heard some people vaguely say that the altar will not remain uncovered, but Fr Rutledge's comments in a previous video suggest the marble columns and murals behind the altar are somehow a substitute, which is completely novel and in saner times would most certainly have been rejected by the SCR as insufficient.
The absence of a baldacchino for the high altar of the most significant church of the SSPX is not only a bewildering choice, but an outright shame and embarrassment for a fraternity that claims to uphold the Tradition. Every major new church among the neo-con Novus Ordo has returned to a traditional form of the altar that includes either a traditional ciborium or a reredos. Yet the SSPX can't be expected to be more traditional than even these?