Why was Boris wheeled out to lead the Brexit campaign

Could it be that The Government are scared stiff of Nigel Farage with a base of already 4 million from the last election, Immigration is the BIGGEST concern for many British people. Now Boris Johnson has been wheeled out by The Government to try and head off Nigel Farages influence because he has been on the campaign trail for months with the Say No campaign. This picture from a meeting in London in November.

And now The Electoral Commission have shown they are mere puppets of The Government by ignoring Nigel Farages campaign. So can we expect a fair election with such a biased decision from The Electoral Commission and can we expect only UK nationals to be allowed in this vote. After all The Turkeys (The European Immigrants aren't going to vote for Christmas ). Do The Electoral Commission need a real inquiry to ensure they stay unbiased and impartial. ?