Troi does say to Picard at one point that the holodeck has been upgraded, or improved, in some fashion. So earlier in the pilot, Riker's seeming amazement could be seen as not so much "I've never experience anything like this," and instead more "They've really jazzed this up compared to my last ship." While there was a holodeck of sorts in TAS, the impression I received was that the holodeck was supposed to represent relatively new technology for the federation.With all the crazy stuff the human race has seen and experienced by that time, you should not be THIS amazed by holographic technology."
It's the same way with the replicator, until a discussion between Picard and his brother (there was a similar one with Miles and Keiko) about there being replicators in their childhood, I thought the devices were to have been "new."
After the pilot, Troi seemed to have change her accent and her diction to make her perhaps come off as more "alien," than she was in the pilot. More Betazed. What they were doing with her facial make up certainly changed.I think the concern was she looked too much like a cheerleader in the pilot (with her short skirt and curly hair), and needed to look more "serious and professional" sitting on the bridge.
