Yep, it's only recently they've even properly started cranking out 10nm themselves. Pretty embarrassing. I wonder what future we have if everyone is just sat ontop of TSMC, not great.
Additionally, the second and third round of desktop parts released on 10nm (aka "Intel 7") are now known to have pushed clocks and voltages somewhat beyond the limits of the process, leading to embarrassing reliability problems and microcode updates that hurt performance. Intel has squeezed everything they can out of their 10nm and have mostly put it behind them, so talking about it like they only recently ramped production is totally wrong about where they are in the lifecycle.