Who doesn't look into a game at all before buying it?
It's not like Telltale ever pretended it was anything other than a hybrid of Heavy Rain and all of their other adventure games. This was clear from the very first trailer.
No one's fault but your own.
I thought it was perfectly competent for what it was. Not Telltale's best, but at least they were working outside of their comfort zone, and it worked out as a trial run for the Walking Dead game, which has refined many of the things they first tried in Jurassic Park, and is pretty great so far.