It's unclear whether the people who do the PPIC poll had an inkling of what the UC/Regents tuition/funding budget proposal would be. But they would have known that both UC and CSU would need to come up with 2015-16 budget proposals at their November meetings. It might be noted that the UC proposal was not tied to any particular tax increase. To the extent the Regents raised the tax issue, it was in the context of not getting a fair share of Prop 30 revenues (rather than seeking new tax revenues from voters or the legislature).
Anyhow, the basic results on higher ed funding are summarized in the two charts below. The full report from PPIC is http://ppic.org/content/pubs/survey/S_1214MBS.pdf.
Click on images to enlarge.