Fans who are upset about Dick's treatment are usually also upset by the treatment of Roy and (especially) Wally. There is a lot of overlap.
Yeah under DiDio's reign Dick got Batman and Spyral. Spyral was also cut short under the same reign and one of the authors was forced to write him back into Bludhaven as Nightwing despite being blatantly uninterested and it's been downhill ever since.
This isn't a little bit of an amnesia arc going on. This is a dumbass status quo that has been going on way too long because management doesn't give a **** and have been pretty upfront about that.