The main goal here is for players to focus on job/ctf/ba/fw/guild wars and uniques/endgame stuff not worry about their silks that's why 100 would be good. It doesn't matter if things will be sped up a bit.
So the process goes like this: you get some basic tier 3 gear->pimp it a bit->do job/ctf for coins to get sod gear->pimp it->kill Devias for bod weapons(optional)->pimp them->do pvp/farm sp at abyss/fw/gw etc. This whole thing takes weeks or even months to complete because of the weekly coin limit and low alchemy rate. So due to these limitations the number of silks/hour becomes irrelevant.
So the process goes like this: you get some basic tier 3 gear->pimp it a bit->do job/ctf for coins to get sod gear->pimp it->kill Devias for bod weapons(optional)->pimp them->do pvp/farm sp at abyss/fw/gw etc. This whole thing takes weeks or even months to complete because of the weekly coin limit and low alchemy rate. So due to these limitations the number of silks/hour becomes irrelevant.