Its tone was as removed from Indy movieness as T3 was from dark and gritty feeling of the 1st movie, with its "humour for all the family(TM)" scenes with Elton John sunglasses etc.
It started from the moment of the "Bad to the bone" bit on T2 and sucked forth from there.
And thats similar to the big problem with Indy IV.
Im talking about the tone of the 1984 stuff too.
There was a nightmarish yet beautiful portrayal of what had to be a threatening landscape. Like with NY in the movie 'The Warriors'.
The Terminator was a fearsome, nightmarish machine of death in the 1st movie.
Cameron the made the mistake of literally making that machine a laughing stock with that musical sequence.
And then killed the Terminator's fearsomeness by trying to bring too much humanity (Effectively making the T-800 'more Arnie than Machine'😉 to it.
And the what part of living in a post nuclear holocaust with machines putting all humans in concentration camps would be UNbleak, Will..?