We have a bunch of machines which have ATCs, and I’m pretty sure Luke has designed multiple systems for this — the problem is, the bar for an actual released product is pretty high, and doing an ATC has multiple complexities (need for air compressor, a solenoid or vacuum to secure things, &c.) which make it hard to cross that threshold at a price-point which would make sense to a sufficient number of folks.
(Says the guy who spent a chunk of change on a quick-tool-change spindle which no one else seems inclined to: Mafell Spindle with manual tool change FM 1000 WS or PV-WS )