Not to defend Apple - A lot of attempts of integrating AI are shot in the dark that lilely make no sense.
However, Apple did have a use case that would be an obvious improvement. The very thing LLMs excel at is at processing and generating natural language. Improving Siri with LLM capabilities was the obvious move, especially at a time where LLM providers are willing to burn cash to reach a wider use base. It speaks volumes of a company that is just rent seeking their position in the smartphone market at this point.
However, Apple did have a use case that would be an obvious improvement. The very thing LLMs excel at is at processing and generating natural language. Improving Siri with LLM capabilities was the obvious move, especially at a time where LLM providers are willing to burn cash to reach a wider use base. It speaks volumes of a company that is just rent seeking their position in the smartphone market at this point.