Firstly, the 25 wards (out of 69) were selected because they have over 20% of the housing stock in the hands of Private Landlords. One of your properties is in one of those areas.
It's safe to assume that the other wards will be included at a later date, they are targeting the most likely areas for problems first. I'd expect this to become nationwide law eventually
Secondly, they will inspect the properties, that's what the licence fee is for, to pay for the inspection regime. You can't send out inspectors that don't exist because the money to pay for the scheme hasn't come in yet. There is nothing unreasonable in that
As an aside, just wait until you need to enter a tax code from HMRC to qualify to hold a licence. That will be the next move. Already happened in my industry.