Speaking as a licensed engineer, CPL(H) in training, and someone who owns a company very much involved in all manner of aircraft maintenance, I see this is total sensationalism.
The simple fact is that aircraft still have to be maintained under the regulation of the state of registry - be it an EASA aircraft or FAA aircraft - the maintenace companies still have to be EASA or FAA approved - so whist non certifying mech's may be non-English speaking, the licensed engineers will still need to read/write/speak English whilst holding the relevant FAA A&P or EASA Pt 66 ticket.
None of the above makes a good story though........