I'd be happier with a buffed SAM LB like advanced earlier by Reinhart above without the oneshot effect. The dash AoE on its own is a unique shape, and the amount of damage it deals on full parties is nothing to scoff at, much like SMN and DRG LB, which are table turning LBs already. DRG has the benefit of doing the spikier damage but is also telegraphed and guardable, while SMN is instant (hard to guard against it unless pure luck). SAM just takes longer to charge, and I think it's okay since it goes through guards anyway.

If the "you're just bad if you get hit by it" crowd is unhappy about that, then I actually pause to wonder why it would be so, since it's so easy not to get hit by it to begin with, which makes it underwhelming or bad by definition right? So they should be happy about such a change with potential buffs (charge time or damage).