One big issue nowadays in the IFB literature that I receive is the emphasis on the need to honor God by dressing up for church in our "Sunday best." However, Paul (1 Timothy 2:9), James (James 3:1-4) and Peter (1 Peter 3:3) all appear to actually discourage the wearing of "Sunday best" in church. They were dealing with a culture where the churches had rich people as well as lower class folks, even slaves, who could not afford "Sunday best," and the Apostles didn't want the rich to unnecessarily show off their wealth in an ostentatious manner, which might make the poor feel unwelcome in church. Church history books have references to poor people in Europe and America in the 19th Century who could not afford to dress up in suits and ties so they stayed away from church. I think that is the kind of problem that the Apostles were trying to avoid.
As for Bob Russell's "odd emphasis on baptism," he appears to be affiliated with the Campbellites (Christian Church, Churches of Christ, Restoration Movement). They believe that water baptism by immersion is a requirement for salvation, which would explain his odd emphasis on getting baptized. Years ago in the factory I had a buddy who was Campbellite and we would sometimes have friendly theological debates over the roar of the machinery. I asked him, "What if a person gets saved out in the desert?" and he smiled and said, "Better start digging for water!"