At least as part of the booking process, perhaps not in advertising..when they talked about "fares as low as xxx"...
However, the only outlier in that was taxes and fees...and the fact that they make an appreciable impact in the total number should highlight to you just how much tax you already pay (7.5% plus 3.70 per person per segment plus another 16.30 if you are leaving the US (8.20 if leaving CONUS)...so the fact that you bought a $29 ticket that ended up costing you $75 wasn't the airline's fault.
What Ben is saying is that if the gov hikes the excise tax to 10...it will now appear to all as an airline price increase, not a tax increase...because he well knows, as well as you..that you look at the big number and not the detail underneath.