I may not be answering your question quite the way you expect – that is whether ‘ the former is a subset of the latter’.
What I can tell you though is that ‘meeting in writing’ is not new and in our scheme is used by the strata committee to have a vote on items that do not require discussion. For example, a quote that has been previously discussed. A ‘meeting in writing’ can be quicker to organise than a physical meeting as getting committee members together can be difficult.
Only agenda items can be voted on and all owners are sent an agenda, have an opportunity to submit a response to the Secretary which may or may not be considered by the committee. No different to a physical meeting in fact.
However, now that ‘other means of voting’ can be utilised (eg teleconference) it is likely that the ‘meeting in writing’ will die a slow death – in our case anyway as we now have free teleconferencing that any owner can be part of and, if permitted, can contribute to discussion.