What is intriguing (in my view) is the Requisitioning Members...

What is intriguing (in my view) is the Requisitioning Members have not supplied a statement to be issued and dispatched to all shareholders.
At a guess there would be a lot of shareholders that are not member and/or participate on media outlets such as Hotcopper and/or twitter, wouldn't it be in the best interest of the RM's (requisitioning members) to have their statement/plans reach as many shareholders as possible?

It appears to be a common practice of RM's with other companies that have I have found that have been through this process.
Basically, if I (an example) wasn't on Hotcopper or twitter and received the notice of another meeting but the only information that came with it was what the company has released in this announcement then it would be difficult to make a informed decision, whereas, it there was a statement outlining what the RM's were trying to achieve and the reasoning or basis to why they are proposing a spill of a portion of the board.

Examples of Requisitioning Members statement:
ASX: CAS now ASX:BRV
https://www.asx.com.au/asxpdf/20190213/pdf/442l950df6yjz9.pdf
ASX:BGS now ASX:MLL
https://www.asx.com.au/asxpdf/20170215/pdf/43g12gmrxc9l2d.pdf
ASX:CXU
https://www.asx.com.au/asxpdf/20190124/pdf/4422dh3wvs03n0.pdf

Also it is interesting that shareholders are voting against the "Proposed" new constitution, these changes are necessary as the company needs to align the Constitution with the changes to the Corporations Act and the ASX listing rules. I would hazard a guess with the sentiment displayed on this thread, thus far, that the proposed new Constitution resolution will be defeated (the resolution for the change is a "special resolution" that needs a majority of 75% + 1 of votes cast for it to be voted in) and that one of the first items on the agenda of the new board (if successful) will be to go through the process of repealing the existing Constitution and then replacing it with the new one.
This will mean that there will have to be another meeting (or at the next meeting?), I cannot find when or what time frame a company's constitution has to be replaced, so the company can align with the Corporations Act and ASX listing rule changes.
https://asic.gov.au/for-business/registering-a-company/steps-to-register-a-company/constitution-and-replaceable-rules/

cheers