This is not an isolated incident when it comes to vocal supporters of Brexit. For example, Jacob Rees-Mogg's financial services company recently set up a fund in the Republic of Ireland to ensure continuing access to the European Market [1].
A simple look into Dyson's past (particularly with regards to the "Dyson Academy" in Bath) should tell you all you need to know about the man. His products are mostly garbage too - not a screw to be found.
[1]: https://www.independent.co.uk/news/uk/politics/brexit-jacob-...