You missed the part where they were reintroduced:
Bai Iear 15 or sou, it wud fainali bi posibl tu meik ius ov thi ridandant letez "c", "y" and "x" -- bai now jast a memori in the maindz ov ould doderez -- tu riplais "ch", "sh", and "th" rispektivli.
Yes, my imposter syndrome comes from my perception of being too lazy, not my ability to do my job when I'm actually doing it.