I'm not sure why not metal figures either.
Especially if comparing with modern GW sprues with a vomit of tiny, often fragile, bits haphazardly scattered across an overly complex sprue.
GW used to be a games company, now they are a puzzle company??
Used to be if a metal bit was broken or missing, you could get or buy a replacement from da trollz.
Now you're left trying to glue back together some rediculus tiny thing piece of junk.
GW used to do good plastics, single piece into some of the multi part regiment/squad stuff.
Now it's mostly just a nightmare and a definite turn off for many would be players.
Plastic used to be a great option for cheaper units. Option being the key word. And great for starter boxes.
Like many things (Kenner being another), they had it all worked out in the 90s. Two plastic armies in a boxed set. The same figures in paint and individual boxes. Metal blister/boxes. Using plastic logically, like horses, shields in metal sets.
Then came regiment boxes, which mostly worked, but started screwing with the system.
LOTR is a great example.
Fellowship had 2 plastic sprues in a starter box, plus in the paint set and also individually. (Actually the goblins just bred and got everywhere, magazines, board games, another starter box…) Then they had metal blisters and metal scenario boxes. The plastic figures also had metal alternatives. Perfect!
Then came the two towers. But no metal alternatives to the plastics. Just more plastic. Still ok, but starting to slide.
Then return of the king. Lots more plastic, less metal.
We won't talk about the hobbit. Fine cast had come out by then. The limited edition figure was still in the starter box when it was eventually canned, after the third film? The second film got a book only, and suspicious plastic elf hero's (both designed for a starter box, I suspect). The third film got.., a pdf download or white dwarf freebie booklet. Fizzle.