More complex a product or solution is less users will use it (because they have no idea about its implications):
IMHO, t-addr does more damage to Zcash than anything else (even trusted setup, I think that’s second most pressing issue). No one (excl. developers & ppl directly involved) has any idea to how to use Zcash in a privacy preserving way.
More simpler the design & product, you get more engagement, love & usage from users. t-addr, z2t, t2z, t2t etc is unnecessary complexity in the core product.
So we need to make zcash dead simple by killing t-addr 