There's very rare cases where it's justified; e.g. if you want to show a drop in company profits from $60.0B to $57.0B, you might want to cut the y-axis so that

There's very rare cases where it's justified; e.g. if you want to show a drop in company profits from $60.0B to $57.0B, you might want to cut the y-axis so that you're showing more detail of the loss over time (maybe so that you can correlate to the CRO's lame new "motions" that they started in January). I do think it should always be called out visually when doing that though.