Structurally they are similar enough that we can communicate. The discovery would be altering our science, but every attempt to exchange beyond technicalities and niceties is somehow incredibly boring to both sides.
After the initial awe, it would be like, yeah, we know aliens.
It took flack? Never heard anyone complain about it before.
Yeah, it has some very low reviews and it wasn’t very socially accepted as the great movie it actually was. People who understood the underlying issues the movie was putting in the forefront, understood how amazing the movie was.