I do agree that the hardware could be better on the V10. We have seen basses of this sort of price point wit Hipshot gear or similar. Saying that, the Sire hardware has had very little complains.
I do not think the company is deviating from what they originally set to do. They are just adding to it, but they are not forcing customers to buy a V10 because the V7 or V3 is obsolete. Just like anything, prices increase and had to go up when the Version 2 was released, but you get a lot more for your money.
The rolled edges, for example, can only be done by hand and this takes a long time to do and no other bass features this at this price point, so this added to the cost plus the new pickups, neck finish and pre-amp. The major issue in terms of quality with the first release was the battery pack which was replaced. The hardware has not been an issue but some bridges on the V7 Vintage were a bit flimsy.
The real pain is the pre-amp as it is PCB mounted, so if you break a pot, you have to replace the whole pre-amp.
To put it into perspective, a Squire Classic Vibe is £389 and the new V7 version 2, which is an active/passive bass with an ebony fingerboard, rolled edges and matching headstock is only £416:
https://www.andertons.co.uk/sire-version-2-marcus-miller-v7-alder-4-string-lake-placid-blue
If you play both, it is a no brainer which one plays and sounds better and for the extra £27, you get a lot more than any other bass at £416 has.