I don't know that there is a path forward in the near term, at least Trudeau won't revisit it, the CPC love FPTP, and the NDP won't take anything less than PR. This is a political impasse.

Is it possible Trudeau masterminded the failure of ER on purpose? I guess anything is possible, but that's too conspiratorial to me, adding unnecessary complexity when a much logistically simpler, albeit narratively longer and less satisfying story played out right in front of us.

Could Trudeau have forced through STV with his majority? Yes of course but that ran counter to his personal brand, the optimism of his 2015 campaign and his early consensus approach to government.

In any case, the truth of what happened doesn't matter much anymore because the "Trudeau lies" narrative is simple, easily repeated, and has rooted itself in popular social media discourse as practically a meme.