That's not what I'd say - and it's not how I put it to the Necrontike. I think it's more like it is a model of somewhat limited utility that's best with a certain army build. Consider that nobody would think of this as a huge loss if it weren't for the fact that the Monolith used to be nigh on the best thing the Necrons had.
It's kind of like us Tau players and our Devilfish. Fish of Fury used to be so... damned... good. And now...
Ok, I think the only difference is that now the Devilfish is just objectively bad. And also our only transport. Other than that, though, it's a similar situation.