I've not seen anyone go really uppity about it, just stating their opinion.
The basic point is that the original film balanced accuracy with 'cool'. So did film two. So did film three. So does this. The Mosasaurus as far as I can see is anatomically accurate -- but is oversized. The original T.Rex had small anatomical inaccuracies regardless of the feathers/non-feathers thing. So on and so forth.
'Tail draggers' wouldn't be minded, no, but audience today likes the new fast Dinosaurs. It's what CGI brought in. Fast lethal things. Tail draggers are associated with old Dinosaur movies only Harryhausen fans such as me remember fondly.
You also have to take into account that the JP Dinosaurs have become imprinted in the public imagination much like the Terminator, or Alien, or Robocop have. They're icons.