Why are these two still on the attack menu and allowed to take off without ords and with formations enabled? I think its a oversight that needs to be corrected. Either by disabling their formation capability from the attack menu or taking them off of the attack menu and putting them in the bomber only menu. 
While I can't speak directly for HTC I'd be willing to bet that bombers are labelled as such of they were used more so for actual bombing missions of static targets. Aircraft that have the ability to score in the attack column are able to do so because they were used as a direct fire support vessel, and both the B25 and Ju88 were used as level bombers AND as close air support (direct fire, non level bombing) vs enemy positions.
B17's were not sent to loiter on station and wait for the call to bomb X hill because the troops were in need of assistance. Lancasters didn't do that either. The Mossi FB Mk IV did, so did the He111, so did the IL-2, so did the A20 and P47. Oh, and the Ju88's could carry torps as well, that qualifies as a direct attack imo.
Do not try and figure out HTC's system of how they label what. Same goes for giving "all bombers" full and complete views based solely on how they are classified (bomber) and not what the crew members of the plane could actually see.
Just go with the flow. Trust me, life is easier. The sun will come up tomorrow regardless.