[ZenPro]

To distil - the new employer and their whole team must accommodate you as an individual so you do not piss off your old employer?

Doesn't sound like the interview will go too well if the whole team is expected to work on a Saturday just for you.

Some team members have children, family commitments or simply adhere to the idea that free time is beneficial for employees.

Personally, I would accommodate one candidate interview on a Saturday if they asked for a specific reason; if it was suggested as a regular occurrence I would question his/her judgement.