I prefer the machine matzos because I don’t like to always have to check the hand matzos for possible shailos; kipulim etc. Machine matzos come out close to perfect, and are usually shlaimim (for shabbos and last days lf YT) – doesn’t hurt that they’re about 30-40% cheaper than hand matzos.
Gadol; rav belsky was talking about the situation in the time and place of the divrei chaim – not currently.