The distinction I make is this: If Trump fired Comey in a clear attempt to end the investigation, then that's an action to obstruct but this does not seem to be

The distinction I make is this: If Trump fired Comey in a clear attempt to end the investigation, then that's an action to obstruct but this does not seem to be the case, since Trump was likely informed the investigation would continue with or without Comey. Though I do find the talk of loyalty to be "unnerving" as some other commenter described it.