Sounds like a way to make single-subject acceleration in math and other subjects impossible, and also to make ability grouping by subject impossible.
Agreed!
Some may say that the subject line "School in Finland gets more like homeschool" would be a highly inaccurate assertion, as homeschool students typically enjoy curriculum at their appropriate placement and pacing... not bundles of pre-packaged curriculum determined by other entities.
The job/vocational emphasis of the schooling described in the article seems to counter, or totally dismiss, classical education... a liberal arts education (literally, education for free people)... characterized by the trivium and quadrivium. For those unfamiliar with the concept, the content currently at this Wikipedia page does a fair job of describing
it.