Exactly. It isn’t a store opening speech or some other super formal part of the wedding. Best man/maid of honor speeches are usually supposed to be more of a storytelling piece (of variable funniness) that ends on some heartwarming and/or cute conclusion.
I wouldn’t blame people for using chatGPT to generate more formal/canned sorts of speeches, but the man/maid of honor speech is imo a terrible application for that.
Without that, who would even bother?