Pentax rebadging a consumer-level superzoom lens because they couldn't be bothered to make one, and Pentax asking Sony to hack a K-mount into one of their mirrorless cameras and sell it as a "flagship" K-mount product are different things. Very different things.
What would be the message, "Buy a Pentax; it's just a Sony A7, but more expensive and with K-mount"? Way to build a strong user base...
The people who bought A7x cameras to use their K-mount lenses:
- would - most likely - not buy another A7x camera, but this time with K-mount. I'm guessing that $2000 (est.) is too much to pay just for AF with K-mount lenses.
- would - most likely - not buy new, expensive Pentax K-mount "full frame" lenses because they already jumped ship.
My bad, I assumed at least the brand matters. But:
- the Pentax products don't matter, just hack a K-mount on something, on anything.
- the Pentax brand doesn't matter.
- all that matter is to have the cheapest way of mounting already bought lenses on a "full frame" camera, preferably with auto exposure and auto focus (but not if it's too costly).
It appears to me you're arguing
against a Pentax "full frame" product line
OTOH:
- I want Pentax products (cameras and lenses)
- preferably Pentax branded (I'm OK with the Ricoh under the back LCD)
- I'm willing to pay what they're worth (similar to what the competition is asking)
Which kind of customer should they target, I wonder?