My group has done it this way one singular time. The only reason is because we ran into two different instances where ADS cast High Voltage, Fire Star, High Voltage. The second High Voltage in that sequence came fast enough that our BRD had around 10 seconds left on his silence from a previous High Voltage, and our PLD had gotten the silence before the Fire Star, so theirs (mine) was also on cooldown.

Apparently it has something to do with dps, and where ADS is in the rotation when Fire Star starts up (my group had never seen this before, so maybe we'd been really lucky *shrug*).. either way we decided ADS was being cheap so we decided to be cheap back.