Fantastic Beasts is Harry Potter's answer to The Hobbit
Harry Potter comes along and offers wonderful stories, interesting plots, fascinating characters, and just the right blend of live action practical effects and CGI only when needed, along with Lord of the Rings. These movies are heralded as fantasy epics and extremely popular and critically acclaimed.
Then comes the Hobbit, which is basically too long, too CGI-ey and also a lame cash-in, which is rightfully ridiculed and lambasted by the former fans, and the trilogy is inferior. This was the prequel to LOTR.
And now comes the prequel trilogy to Harry Potter, and it's proving to be just as long, too CGI-ey and also a lame cash-in. The remainder of this trilogy will crash and burn, and is best forgotten, as is The Hobbit.
I rest my case for the prosecution.