Emmer,
I suspect in this instance the intentions are more educational rather than commercial, although all parties concerned (LSE, Digital Look, Barclays) I am sure will want to gain the commercial knock-on effect of educating a potential client base.
Having said that, Covered Warrants are (generally) a hugely over-priced instrument.
Exactly the same risk / return profile provided by a covered warrant can be achieved by trading (for example) a put or call in the exchange traded markets at a much lower (cheaper) price.If you do attend the seminar, you may wish to ask the question why anyone would want to buy a covered warrant when there are much cheaper possibilities to be found elsewhere? (and don't let them fob you off with "more liquidity" as an answer)
You may then want to ask why you cannot short covered warrants.......
I would be interested to hear their answer!