This is such bullshit. Teachers don't get paid enough in my opinion. This nonsense about cutting their salary will only discourage people from wanting to be teachers.
Current teaching salaries are one of the reasons why there is a general shortage of qualified and capable teachers already. Making it less will actually force some teachers to quit just to find another job that pays enough to live on. Paying teachers more would greatly encourage people to become teachers, even people who would not normally have done so. This is a good thing. To be honest, a nation can pretty much never have too many teachers. Education is just too important.
I personally think that all public servants should effectively get the same salary, especially for politicians. Then police, nurse and teaching salaries will go up as the politicians that generally rake in millions will actually have incentive to raise their pay. Really it pisses me off to no end knowing that an elected official will do less for a country than a police officer or teacher of 20 years, but make more in their short term than those public servants will make in their lives.