TPS (not Death long) was actually Trinistax's worse matchup, this is a well-known thing. Mainly due to the fact that Workshops at that time were way less consistent and really bad at closing games. Which gave you enough time to build up your lands to play through Trinisphere.
When you talk about shops in the lodestone golem era, that's a completely different story. Against those decks you only had a few turns before they killed you, meanwhile, they were able to consistently deprive you of a mana every turn.
You are dead wrong if you think you could resolve Hurkyl's EOT consistently when lodestone and chalice were unrestricted.
PO never had to face Chalice, the only reason PO has a good matchup vs shops today is because of its artifact mana, Chalice would totally change that dynamic.
The same arguments you applied to stony apply to Lavinia, instead of Fragmentize and/or Disenchant just replace them with Swords to Plowshares and/or Karakas.
The decks that run Lavinia are the same decks that ran/run stony silence with the same 12 counters, so once again this is not an argument.
FOW is probably your worst card in the matchup anyway, Lavinia or not. There are a lot of options that get around this part of Lavinia's ability such as Flusterstorm or Defense Grid.