While I will try not to stick my nose into the hornets nest about the usefulness of crafting, I will try and add something constructive.
You do not need to invest 30 ability points into crafting/bs, if for example you take Jahan as crafter you only need to put 20 ability points into crafting/bs and with bracers/belt that will drop down to 6 ability points. (2 ranks crafting/2 ranks bs = 6 ability points.)
Alternatively you can hire a henchmen and give it crafting 5 and just throw him/her in when you need stuff crafted that is actually of importance, this way none of your characters truely lose any ability points, however grabbing that extra npc every now and then is rather bothersome imo.
what I did was grab a crafting mod which made sense, would fix the missing recipes and would also have extra benefits for having high crafting. I am not familiar if I am allowed to link to a website which is not affiliated with Larian, so I will take the safe route and not link it. If it is allowed I can post a link to the source.
While it might not have been very helpful, it is kinda "hard" to reply on just a statement.
With kind regards,
Rashar.