I'd rather they take a while longer and get things right then that we get a buggy unfinished release as we have seen from other publishers in the recent past. For AeroSoft this is their first complete simulation they will be releasing so I bet they are committed to making a good showing of it to cement their reputation in this field. From reading through the AeroSoft JT Forum last week I really get the feel Matthijs from AeroSoft is on this project in a big way and AeroSoft is willing to invest in its future.
Of course it's better to "take a while longer and get things right then that we get a buggy unfinished release", that's been said several times here in these forums and I also agree with it but it's also a fact that delaying too much isn't also good for anyone, specially to the devs and publishers.
In where I think that the publishers are making a mistake (regarding the interview) is in saying that Jet Thunder will be released by christmas, that's a deadline that the devs are publisher may not be able to comply and honestly I have my doubts that they will (that JT will be released by Christmas).