I don't think there's any truth to your notion that deletes are somehow worse for a solid state drive than other kinds of writes. Overwriting a sector has the same effect on longevity as erasing it and filling it up again, but in the latter case, you can use the ATA TRIM command to defer the flash block erase latency (which is significantly higher than the flash program latency). The only way in which deletes are "bad" is if you're comparing to a workload that fills the drive once and then moves on to fill a different drive - but that's not a fair comparison against doing all the writes to the same drive.

Different workloads can somewhat affect how much write amplification results from the wear leveling, but the best-case there actually is to have no long-lived data on the drive, ie. lots of deletes.