The US went ballistic over the idea that Russians interfered in their elections by publishing emails. The direct contacts would turn them super-ballistic.
If Russia played no role in instigating the conditions of the revolt, and if Russia was a close US ally, then I would not call that a Russia-backed coup attempt.
The analogy doesn't fit, though, because Russia wasn't an ally, it was an adversary with its heart set on undermining US democracy. And Russia did play a role in the events that caused the revolt, with the purported stealing and releasing of the DNC's and Podesta's private e-mails, strategically leaked immediately after the Access Hollywood tape. One could make a case that these leaks got Trump elected due to the thin margins that he carried he election by, and that the leaks created an atmosphere of deep-state conspiracy thinking in the US public that made people more pliable to Trump's stolen election lies.