When playing the game, i usually choose a base of operation, from where i go, taking my small fleet of 3 ships there in advance. Instant transfer would make any sort of careful planning obsolete... I no longer need to be an elite (meaning someone with awareness and sense for situations), to master certain scenarios and plans.
Planning, developing strategies and other things like that put the spice into the game for me, like getting back into the bubble with 3 months of exploration data and not getting spotted for example. Any mechanic that takes this spice out, like instant transfer, should be instantly dismissed.
For me, the first real downgrade was, when the hazards of space werent hazardous anymore. I really hope, knowing your things and being vigilant stays core mechanic of the game. Its what makes it Elite... and new features should be decided with staying true to that.