Baumgartner's bizarre and almost unreadable paper is mostly flying under the radar of mainstream science. A more layman-comprehensible narrative of the flood-model geology is presented in this ICR paper from the same year (1994) which Baumgartner partially authored.
Indeed, this is Walt Brown's hydroplate in a more sophisticated treatment. Baumgartner's new wrinkle is "runaway subduction," to power the high-speed slamming about of continents. Some of the more risible aspects of Brown's geology have been discarded.
Many of the problems apparently remain. As in the Walt Brown model, the high-energy kinetics might well have boiled the oceans. That and other problems are discussed on this message board. ("Arm waving" is another part of it.)
More direct counterindications of the YEC models are mentioned here on Rates of Plate Movement During the Phanerozoic. The conclusion:
YEC tectonic models in which Pangaea is rifted apart and its fragments displaced to more or less their present positions during Noah's Flood, about 4500 years ago, are not consistent with presently measured motions, with rates indicated for the Phanerozoic by radiometric data, or with the distribution of deep sea sediments.