Agreed. The change was made to conform to ICAO standards[1], which the article alludes to, but doesn't examine the implications of remaining unstandardized. Surely having different phraseology in the US is a separate risk and cognitive burden!

To me the main issue is not "wait" vs "hold"... it's that either way, pilots may misremember having been issues the takeoff clearance. The best defense against this, IMHO, is ground radar to detect the movement as early as possible.

[1]: https://www.faa.gov/airports/runway_safety/resources/luaw