Two relatively modest changes would go a long way to reducing the risk associated with manual (cable/wheel) trim.
1: Change the MAX cutout switches functions back to NG and prior to restore the option to disable -all- automatic trim inputs while allowing pilot thumb switch electric trim.
This of course would require training since they have been treated/trained as one for quite a while it seems.
2: Make the foldout handle much longer, the full diameter of the the wheel or more, greatly increasing the available torque.
I saw some suggestions along this line many many posts back.
This could be done using a ratcheting mechanism that only engaged with pilot input, otherwise it could be free wheeling. Ratchet is needed due to clearance to front.
I am sure Boeing has much better mechanical engineers than I am, (especially since I am in electronics) to work out the details.