Because those will sell great in a market filled with massive SUVs and pickup trucks.

This is the truth

They need to just build hybrids until batteries advance further. Either ones that will last 25 years with 80+% capacity remaining, or lighter more power dense batteries that can more easily and cheaply be replaced.

A 1500Lb battery that costs $10,000 and requires half disassembling the vehicle in order to replace That goes bad after 15 years is a pretty shit thing.

I have an 08 prius with 240,000 miles on it. The 75 Lb Battery went bad last year. I bought a new one from toyota for $1,900 and installed it myself in an afternoon. If the gas motor goes out on me (they will typically go 400,000 miles if cared for correctly) a rebuilt one with a 5 year warranty is around $1400. That's not in most people's "diy" zone but it's a 7 to 9 labor hour job, so just call it $3,000.

All things much cheaper and easier than replacing an all electric battery, and no range issues.