IMO - Pentwater will get some good traction on this and Tinto will have to pay attention. None of the institutional holders are all to happy and I would expect will support Pentwater and all of us small minority holders will as well.
When the majority of the minority strongly support something, it makes for a strong case with the securities exchange commissions as well.
Tinto has been using TRQ to their benefit at the expense of the minority for years (fees, installing Tinto puppet management). Most were willing to look the other way as they saw an eventual payday but now that has changed as they fear Tinto using its position to shut the minority out.