Sorry but Crowded House existed before Mark and is going to after this. He may well roll up on a record in the future. This is Crowded House. How many writing credits does Mark actually have?
Many people have spoken about Together Alone and Mark's contribution here but what I have read and heard about Together Alone is that it was a time of great change within the band. TA is pretty much down to Neil, he wrote the songs, he found the place to record, he figured out who the producer should be. It was Neil (and family) who had decided to return to New Zealand as it was felt to be inspiring, home and they wanted to be there. This was his idea; he felt it was a good moment to call Mark more formally into the band.
What do people think Mark has actually been doing for the last 10 years? He has a life, other projects and in the last decade, there has only been at best 6 weeks of Crowded House (in 2016 perhaps, rehearsing and readying for the Sydney shows).
For me, I think both Mark and Matt are replaceable members of Crowded House probably as they are not original members. Thats for me anyway what makes it still Crowded House. To be honest, with Mitchell Froome being involved, he feels 'more crowded house' than either Mark or Matt. Personally, am hoping Liam is also involved next year, he is a great musician and has a great stage charm and presence. Things change and that is a nice thing, not something to be so upset about!