At the time of the Christchurch incident, there was some bemusement on the part of both Wagner, and the Bangladeshi and New Zealand teams.
Now, however, the cricket committee, headed by former Indian great Anil Kumble and including a raft of former prominent players, and New Zealand Cricket's chief executive David White as the ICC representative, has recommended that once a batsman has grounded his bat correctly he will be safe, even if his bat and body are subsequently off the ground.
In Wagner's case, rather than drag his bat past the crease, as cricketers are taught from school age, he had plonked the bat in and then lifted it.
In another development at the two-day meeting, the rule which prevents teams referring on-field decisions to the third umpire in a test after two unsuccessful attempts, until after the first 80 overs of an innings have been completed, could be adjusted. The rule also applies to one unsuccessful call in an ODI.
The committee's proposal is that if an lbw decision comes back to the on-field umpire with a verdict of 'umpire's call' the review would not penalise the team seeking it.
And having the Decision Review System in T20 internationals has been mooted. Currently it only applies in tests and ODIs.
There are advocates for the system being introduced in the game's shortest format. One review would apply if it is successful. The ICC is keen on bringing the system in late this year.