The effects are extremely small for variants that arose recently. If there is a new round of vaccines that work on current and future variants, it would make more sense to get vaccinated.
What I should have said was "nobody should take the pre-bivalent boosters with any expectation of seeing a reduction in infection chances, or severity of disease, based on our current understanding of omicron, while bivalent boosters seem promising, even though we have extremely limited data and won't know for sure until after the winter cycle."