My main point of reason is that those bows can’t be crafted. Their general accessibility is thus really low. If bows had strength craftable options during leveling and at endgame this wouldn’t be the case. Bows are, by game design, an Agility weapon. Legendaries are special exceptions.

Also another point regarding accessibility. Although, I don’t see the merchants ever leaving tbh.

I’ve also been thinking, why not “rework” ranged options in general. Take for example longbows and shortbows. Longbows for Strength (for reasons already outlined) and Shortbows for Agility.

Throwing Axes for Strength, new craftable Throwing Daggers for Agility.

Keeping this line of thought, small One-Handed Crossbows for Agility and heavy two-handed Arbalest for Strength.

How about my other suggestion?

Perhaps not precisely this, but some other sort of bonus. Reload and Aiming/Ready speed for example but not because of a requirement. Just a bonus that increases with Strength instead of damage.