I don't question a political agenda, but I do think the headline in the print version is sensationalizing. For example, it says "Oregon teachers' pay tops other in region" but the sub heading is "insurance and benefits surpass some districts in Washington and Idaho, a study finds."
Instead the headline could be "Oregon teachers' insurance and benefits trail others in region." This is what the first paragraph states when it says compensation is higher than SOME districts. That means it is also lower than SOME districts. 
The second paragraph says that the "high cost of those benefits means..." Isn't "high" a subjective term? Wouldn't "higher costs" be more neutral and accurate? 
Finally, a more detailed examination would have indexed compensation with cost of living. How do I know teacher pay in Beaverton is relatively that much higher than Vancouver? In fact, cost of living indexing might prove teachers in Oregon are actually paid more in real dollars than in "some" areas.