That hit us too in areas where we have two-level trackage. The track running underneath would lose signal, so we ended up putting in an additional earth ground wire running along the track. That pretty much cleared it up.
Yes I know I just hate when people leave out pertinent details to make something look better than another.
As far as the rocket guy fixing issues I am pretty sure if MTH could have afforded someone like that they would have but there DCS people are pretty sharp and have to keep it affordable.
Just remember without DCS there might not be a legacy!!!!