The Mindlink attributes have not changed so this is nothing to do with it being more attractive.

I believe (though not 100% certain) that these items are not seeded directly onto the market by "npcs" but are placed there by players who obtained them in another way (maybe npc rat drop or loyalty point store) so I would say this is purely down to supply and demand.

You can tell an npc placed order as they always start with a 365 day duration and players cannot select more than 3 months when placing an order.

Another effect on the market was the removal of the Learning Skills and return of the SP's invested in them to the characters. So suddenly, a lot of characters where able to invest those SP's to get new skills instantly. With news skills come the ability to pilot more ships and use more equipment. So more across the board, prices went up as everyone brought the ships and equipment they could now use. In areas where there was good supply, prices have returned to normal but many items are still selling at a higher price due to this.