No surprises here. I always cringe when I see 'mum and dad' flotations. These type of deals are always plagued with bias, mostly in the favour of the big guys.
The poor retail investors get sucked in by the allure of holding a brand name or having boasting rights. This thinking is dangerous when making an investment. I doubt most people would throw $1000 on a sports bet but quite happily to throw in more on buying a 'big name'.