I can personally attest that it is incredibly hard to land a solid remote based job, even if you're very good at it. I have worked remotely most of my career (with frequent visits to the office) but I still see a constant stream of people who prefer to have someone much less skilled and/or capable on site rather than take the chance and hire remotely. Time zones, contractual arrangements and/or agreements, distance a…
That week in the office is enough to get to know everybody and vice versa. You do need to actively seek out and talk to everyone, though.