As a voting issue, either way, I doubt sentiment to vote...

As a voting issue, either way, I doubt sentiment to vote favourably or unfavourably is black and white.

Problem is YTC needs start-up funding sufficiently robust to allow progress to the stage that YTC can self-fund.
Presumably after much research YTC decided the offer from Glencore was the best finance/technical support deal they were going to get.

It is not difficult to imagine that a significant portion - circa 20% - of shareholders supportive of YTG are unhappy with the direction YTC is currently heading and will behave in as obstructionist a manner as possible; i.e. will vote against.
That leaves the other 80%, and, to gain an outright majority, more than 62.5% of that 80% need to vote in favour.

Right now the Glencore deal is the only deal in town and to avoid more onerous conditions that could come into play, YTC already stated they can pay the debt back quickly. If someone trusts YTC management, then reasonably, despite frustration with the sp and tenuous mis-givings, that someone will vote in favour.

A favourable outcome encourages YTG to stop being obstructionist and make a formal play to regain control of YTC, or suck it up and stay locked in at threshold maximum 20% shareholding.

Just my own thoughts.