Arnel's stage interactions with other members

So, my Uncle caught Journey, Loverboy and Pat Benetar recently. He's not a massive Journey fan, but saw them before with Perry twice and was looking forward to this.
In the end, he came out disappointed. He loved Pat Benetar and Loverboy but found Journey quite disappointing. He thought Arnel struggled with some songs and probably had a bit of trouble adapting to it not being Steve Perry.
One thing he and his GF noted was something I hadn't heard before ... that Arnel seemed totally isolated on stage. They both commented that the Journey members all interacted with each other but no one seemed to interact at all with Arnel ... like he wasn't actually part of the band.
Thought that was an interesting observation.
In the end, he came out disappointed. He loved Pat Benetar and Loverboy but found Journey quite disappointing. He thought Arnel struggled with some songs and probably had a bit of trouble adapting to it not being Steve Perry.
One thing he and his GF noted was something I hadn't heard before ... that Arnel seemed totally isolated on stage. They both commented that the Journey members all interacted with each other but no one seemed to interact at all with Arnel ... like he wasn't actually part of the band.
Thought that was an interesting observation.