"Basic foundation'? Ha ha ha ha.
The shuffling, step filled zero technique version of 'dance' can be learned at the local community college, taught by virtually anyone, at a fraction of the cost of the Murray/Fred scamstudios. But really, is THAT what someone really wants out of dancing? For $6000 (or whatever they want to charge you) you could take group 'social' lessons five times a day for a few months and (unfortunately) look like a chain studio graduate. The socials are full of them.
And, fliccolo, do you really think thousands of dollars worth of beginner bronze lessons are needed to tell someone not to hit someone on the head with their New Yorker? A simply 'watch out for others' is usually sufficient.
Remember, the worse dancer always has the most fun - so the ONLY reason to get poor instruction is to maintain your place in the 'fun' area that beginners have, when they have a room full of more 'advanced' dancers to dance with. In that way, Fred and Murray WILL succeed in making your time at the old man social a happy success....