Being openly "conservative" means biased. Although they are entitled to their opinions it is good to be aware that they have a (conservative) bias. They do not try to be objective, they try to be conservative.
And what is "conservative bias"? It of course means conserving the status quo, conserving the power of the rich and powerful, conserving inequality. That kind of thing is what I think ethicists should be studying.
Note that to the conservatives, since by default they want to conserve things, don't want change, they don't want ethicists snooping around asking questions about what if anything might be unethical about the existing power-structures. No Sir :-)
So it seems to me that for a conservative magazine to criticize "ethicists" is very self-serving for them.