I think that 'over-familiarity' was possibly a factor. It could be fatigue of seeing a character go through the same motions as two (actually four, since Data and the EMH also served similar purposes) previous characters had done already.
It was kinda like - 'so, what else is new?'.
'If the Apocalypse starts, beep me!' - Buffy Summers
'The sky's the limit.....' Jean-Luc Picard, 'All Good Things'
courtesy of Saquist