"Having the freedom" to dash has a lot of cons and will cause many ppl to die or atleast not to be where they should be. So far "needing a target" is way better and can even be used at several knockbacks easily to keep uptime. (E.g. Levi)
And in the most cases you´re able to greed for the last skill on max melee range, then you move 1 feet out, back in and continue with GCD rolling. If that´s not possible, you´re going to do better with SSS, which is a good downtime / disengage tool so far.

Imo i really can´t get the hype behind TC. To use it for a disengage is just niche too and definately needs a person you trust. None of the current fights needs that to keep better uptime. And while it´s copied from BLM anyway, we seriously don´t need more homogenization until every class has a premium dash. Don´t even get why SMN or SGE has a dash.