The "galaxy shrinking" argument, for me, is null. You still have to fly a ship to the place you want your other ship, sure you're going to fly your Asp/Hauler and transfer your combat ship but if you own both then don't you deserve that sort of convenience? Haven't you worked for the cr required to do it? All the instant travel feature does is reduce the time it takes, not the act of actually flying from A to B. New players, flying sidewinders, will still get a sense of the scale of the galaxy. Later players have the cr and deserve to have less of the hassle. It's like, I know it's a big galaxy, stop making me fly across every piece of it, it every single time. It's basically functionally equivalent to fast travel in an RPG, except you do still have to fly some of it (with an Asp) and that assumes you have your Asp to hand.
The FSD choice argument is basically the same argument except IMO it's less valid because in practice I have the cr to fit an A rated FSD in all my ships all the time and no good reason at all not to do so. Plus, unless you're solely grinding a RES in the same system as you've parked your ship - vs doing combat related missions - you're still going to need an A fsd in something like a combat fit FDL or it won't even make the next system over. To reiterate, for players like me with plenty of cr I am already in a situation where FSD choice does not matter at all (just fit A all the time), making the argument null and void. For new players, cr are still the balancing factor in the choice, and they will only become more crucial when the transfer feature also costs cr.
In short, we don't need the time delay, the cr will balance things just fine. The time delay only punishes experienced players, and for no good reason.