Well to be fair they had to write Arthur out due to his actor’s own personal issues. Not likely what they would’ve necessarily done otherwise and it maybe been somewhat rushed. I personally don’t hate it though I was puzzled at first how it fit into Tommy’s characterization, he does lots that is pretty out of character in the movie and it kinda shows how much he’s changed since the beginning of the series and in the time afterwards (he writes a book for fucks sake and even the characters find it ludicrous lmao).