I was very young when TMP came out, but I do remember its release. I don't remember my parents saying anything negative about the Enterprise's redesign. The one thing I do remember them saying was they didn't like the then "new" uniforms all that much, and complaining that the communicators were replaced with wrist band, though.
And honestly, I don't understand the hate for the TMP Enterprise from some people. It is STILL my favorite incarnation of the Enterprise! I like them all, don't get me wrong (yes, even NX01!), but I have always had a special affinity for the TMP Enterprise. Probably because as a kid, I grew up building models of it. And at the time when the only Star Trek that existed was TOS and Star Trek 1,2, and 3, I used to think how old fashioned it made the TOS Enterprise look to me, with its Saturn 5 rocket-inspired nacelles, and its radar dish-inspired deflector dish.