...so to boost numbers. [That makes sense - if it's about quantity in the present, not quality or future, it's not a bad plan to try and get as many metis as possible.

Begs the question if Glass Walkers are so focused on the Weaver because they try and balance that as a tribe they're more likely to fall to the Wyrm with that many metis...]

Of course. Every metis should be able do one or more things well, maybe better than others. [That's how you earn your keep, so to speak.]