I've contacted the author and he's preparing an English version. Until then, I was able to get some of his conclusion into a readable English:
To summarize: The Catechism of the UGCC Church "Christ - Our Pascha" is the theological reflection of the processes currently taking place in the UGCC Church. On the one hand, it shows a certain theological, and especially an ecclesiological progress - the Church declares itself as a national church within the Eastern tradition, and this shows that is in line with other Ukrainian churches seeking recognition of its autocephaly. On the other hand, the document is clear evidence that the Church is not yet rid of the ecclesiological heritage based on the Western concept of unity of the Church called Uniatism.