Nikos is from analytica, a consultant group created by and for the Republican Majority.

Working with the Alaska legislature is all they do. It's almost as if the Republicans created this company and hired some friends to tell them what they want to hear.

I don't know who pays Marks now but apparently the state was for years "Between 1983 and 2008 he was a senior petroleum economist with the Tax Division of the Alaska Department of Revenue"

He was a propaganda machine in support for SB21 and it turns out he was wrong so we clearly shouldn't be listening to him (nor the legislature for that matter)
https://www.adn.com/commentary/article/roger-marks-calling-out-six-vote-yes-claims/2014/08/10/

The only one I trust right now is Robin Brena and he has given his consulting to the state for free.

I have yet to see anyone discuss his testimony in the media or legislature.

If he is so off the wall,why don't they tell us what is wrong with what he said?

The blackout implies he is correct.