I have been a member of a local musicians union for more decades than I care to admit. If someone was offering to replace me with an AI after a career of dedication to the art, I would worry there is a real risk of incidents of devastating loss of income if there is no financial cushion. Even if I had not lost any gigs yet, I would call a couple of the local union board members to discuss it, and I believe this is a concrete situation which the local board would take up for discussion.
I'm sure there are good things to come out of AI in the arts, especially if it becomes a tool for the artist. But offering to put a financially struggling artist out of work with low effort, even temporarily, is a nightmare for the artist. Guilds and unions [0] [1] have talented artists on boards of directors and lawyers on staff who can help them codify some of the issues into their standard contract used by member artists. I have seen bands fired with no notice when they had used a standard union contract. The contract and access to the Union's attorney is the only thing that protected them from loss work and not making rent that month.