I would assume so, but again, it should be a skill you need to time, not just flail around like a lunatic
I never thought about TDB as skill with a CD time or that it is somehow improper to use it continuously (which is why I wouldn't call it spamming because that indicates using it in a manner it wasn't intended to be used).
I suppose CD time is set so short on most servers so that it feels like there is none, also it might appear to me there is no CD because I am not one of those folks who study the skill mechanics too closely, on trainer say and with a critical eye. But that is not to say I don't notice when it is pants on some servers.
I might be the only warrior still inserting FS into TDB or at least I still have good will to give FS a chance but TBH it is not worth it except in cases when TDB had been made so poor that it makes FS worth using. Like this server that advertises 1.8s TDB CD, don't need to name it.
When it comes to early soloing ET or WT or KS (especially WT and KS since ETs are weak on today's servers), TDB is absolutely essential and you must be fricking outa yer mind to tell me to 'time it' when I am in for a rough ride and barely hold onto my dear life, I mean HP LOL.
What do you expect me to do in between 'timed clicks' on TDB key? FS has too long cooldown to fill in, do you really expect me to do normal bashing swings that are totally ineffective in between clicking on TDB button every (say) two seconds?? Again, you musta be fricking outa yer mind, just goes to show warrior is not the class you have practical knowledge of.
What next? Tell me I shouldn't spam HM, CHM by holding Shift and mouse key down instead of clicking on mobs one by one?
That said, I am not for making TDB a toggle skill. Mind you, I rarely engage in PvP and rarely I am top dog on servers with stellar stats.