They want to cut cost and save up more money for other projects their pockets.
Don't be surprised that AI replaces people, because for most employers, people are just numbers, and besides, they go on annual vacations, sick leave, maternity leave, and constantly complain about their low wages. AI solves all these "problems" and, as they say, increases efficiency, and those at the top will profit more than before - for them, in any case, it's a win-win situation.
After all, how can you compete with something that can do your whole day's work in just a few minutes?