Here's the thing: their RD was well-received with a good music edit, and fantastic choreography. The free dance was also a strong program. They were a priority team that were well-trained, and had every opportunity to win Worlds - but an unfortunate twizzle error in the RD had an impact on their competition. That is not the coaching team's fault, IMHO. Sometimes, things happen in competition.
Igor trained the previous Junior World Champions, again with solid programs and skating skills. So frankly, the coaching team is still doing something right. With MIDA just opening up, it will be interesting to see how their four senior US teams stack up at nationals. MIDA has a solid trio in Charlie, Tanith and Greg. So, two major ice dance training facilities within 30 minutes of each other in the suburbs outside of Detroit.
Also, there are fewer training issues in the US currently than in Canada, from what it appears. That has to be a plus for USFSA and competitive teams.