Would greatly simplify things if shards and shard-based items were eliminated. Alpha slot abilities can be constructed with shards or threads, while all other abilities can be only be constructed with threads. While shards can be converted to threads, threads can't be converted to shards. If you want to construct a tier 3 alpha slot ability and you've got the Notice of the Well from the WST, you need to construct the two common components from shards (8 total). If you want to construct a tier 4, you need 2 Notices plus 32 shards to construct the Favor of the Well, plus 16 shards to construct the common and uncommon components (48 total). While you can earn some of the common shard components from TFs, the uncommon shard-based components can't be earned from any TFs or trials the way the uncommon thread-based components can. Since shards drop at random and can't be created from threads, the only option is to wait until you accumulate enough shards (or break down Notices into shards at the poor exchange rate of 4-6 per Notice).
I see no reason why shards couldn't be eliminated and have the WST grant a rare thread-based component. If shards aren't eliminated, at the very least we should be able to convert threads to shards. Would also advocate for the conversion rate from Notices to shards to match the conversion rate from Notices to threads. If a Notice can be converted to 40 threads (equivalent to 2 common components), it should be convertible into 8 shards (not 4-6).