It's unlikely that anyone who needs licences, approvals, assistance, whatever, from the CAA is going to put his/her name to a petition.
So no conclusion about the feelings of the regulated should be drawn from the fact that so few have signed up to have a dig at the regulator.
Meanwhile, in breaking news, a move is gathering discernible momentum to initiate politically-supported investigations at European level to sort out the appalling, wasteful bureaucracy of EASA starting from the hypothesis that since 2003 the level of aviation safety in Europe has been reduced in more than 80% of Member States, and reduced by a large amount in those States with previously very high standards.