It doesn't matter one bit. There is no need or reason to 'stay true to the original'. Because less than 5% of people in America even know what the original was.
As Hillary said, 'What difference at this point does it make!"
How do you make a movie of a sitcom that had a laugh track every few seconds?
Beverly Hillbillies movie was the worst movie ever made.
Fred Flintstone movie stunk and failed
Brady Bunch movie stunk and failed
Adams Family movie stunk and failed
Lost in Space movie stunk and failed...soon
And a dozen others
The idiots in Hollywood are trying to spoof something that nobody knows about. Everybody leaves confused. The people who know what it is hate it. And the people who don't know what the original was, don't understand half the satire and jokes. It's a lose, lose, and that's why they always fail.
Still waiting for that blockbuster 'Alf' movie or maybe a 'My Three Sons' remake? I'm giving them ideas, and they will do it. Just wait and see.