Yes, this kind of lectures is very common in Japan. But the problem is not only in its pronunciation. They mainly focus on the English grammers only and ignore practical things. The presenter repeatedly said how to discover the clues and utilize so-called "the rules" to create a grammatical sentence. This makes most students think of English as a certain kind of puzzles (like math), not as a way of communication. As a result, many students tend to think speaking ungrammatical English sentences is horribly embarrassing. I don't think Japanese people are particularly bad at learning foreign languages inherently, but this sort of trend makes them look even more shy and intimidated in front of gaijins.