This is not a problem if the devs deal with the issue on the scaling side rather than change things for paladins.
My own take on this is that STR should be changed to be a modifier for shield blocks. That way you benefit from the increase in DPS as well as the improved shiled blocks (could be increased chance, or increased damaged mitigated when blocking, etc). Likewise, for PLDs MND should probably affect accuracy rather than weapon damage.
With this in mind, tank gear from here on should have STR as well as the staple tank stats like VIT and MND in the case of PLDs. Honestly speaking tank gear can come out in one of two ways: stats favoring PLDs (STR, MND, VIT) and gear favoring WARs, or unifying tank stats and releasing tank gear that way. I'd be in favor of gear that clearly favors PLDs, should the stats on said gear reflect it.
A good chunk of a tank's threat/aggro/hate/enmity comes from the damage they deal.if you're stat'ing your PLD for DPS (STR), I don't think you're doing it right. Sadly, this is how FFXI ended up too, with turtle PLD being disrespected in favor of ATK/ACC builds.