I don't think there was a good option that was also realistic.
The T-90M is itself a long in the tooth design that hasn't gotten the kinds of modernizations that tanks like the Abrams have to keep it relevant (and even then the Abrams is already being retired by the U.S.) Russian tanks needed an overhaul from the T-90M.
The T-14 on paper had a lot of good upgrades. The problem of course being that it's much easier to draw something than make it work.
So the two options were keep building obsolete "modern" tanks or build a next gen tank that doesn't work.
What Russian tanks needed was an overhaul to their fire control and ideally their protection to keep up and shift into active protection. The ancient curtain system is not cutting it.
Part of my wonders if maybe they should have invested in something scaled back and novel. Make a lightweight vehicle like the totally-not-a-tank-we-swear M10 Booker. Something lightweight, with a smaller caliber main gun to focus on taking out structures and infantry targets. Stick some active protection on it, and some missiles and you've got a vehicle that bridges that gap between IFV and MBT.