I spent more than two hours spamming the Fleet General Channel and whisping various players to find some people to explore the Foundry.
I've been doing this for several days, and there's no way to find anyone anywhere.
It's NOT FUN. Period.
It's not fun not being able to explore a flashpoint, it's not fun being stuck on the Imperial Fleet to find someone to play with.
Sorry to burst your bubble, but even if a LFG tool is not fine by you, it's sometimes necessary to have something to find people to play with.
Those of us playing on early access servers mostly have no issues finding groups. Just give your launch server time for people to level up. Last night everyone and their mother was forming groups for Boarding Party and Foundry on my server.
Boarding Party is LEGIT fyi. Toughest FP yet!