This kind of sentence is par for the course in (my native) Portuguese. I have to consciously break down sentences when writing in English, to the point that my

This kind of sentence is par for the course in (my native) Portuguese. I have to consciously break down sentences when writing in English, to the point that my discourse in written English sometimes sounds, to me, too "stop and go". As such, I am used, and enjoy, such long, diverging, sentences. To each his own, I guess. Both formats have strengths and weaknesses. Simple sentences, in logical form, are easier to parse and make it easier to follow the "formal"(ish) proof. Complex sentences more closely grasp and transmit divergent thought processes, where you attack related avenues of thought at the same time you are making the main point. I don't think one option can be graded as better than the other. Use a hammer on nails, fetch a screwdriver for screws.