He can have a CHC assessment but not until he is in the care home and she thought it unlikely he would quality as it's notoriously difficult to gain.
Please do not believe any of this. I am an expert on this having got this for my late OH on appeal - and also from having been a hospital social worker and knowing how the system works. People tell you total bullshit .... They are primed to put you off applying and people just drift away thinking they do not qualify when they do. It is a disgrace.
He does not have to be in the care home to apply - that is total nonsense. The application can be made in the hospital now; and indeed people are entitled to CHC funding for care in their own home where this applies (not in your case I know). What you have been told is quite simply an untruth. And it is one that is spouted all the time - it is totally iniquitous.
Basically CHC funding comes from the NHS and he does not have to contribute at all (unlike LA when he does have to make a contribution or pay the full amount once his house is sold.)
This is the assessment form - take a look and see where he fits in: https://assets.publishing.service.gov.uk/media/635165f38fa8f554cb9dc2e8/NHS-continuing-healthcare-decision-support-tool-guidance-2022.pdf You have to wade your way quite a long way down the form to get to the meat.
But before you do anything else or start letting LA assess his means, contact Beacon CHC where they will give you free advice. They are the experts and it costs you nothing. They will tell you every detail you need to know and you only pay them if they launch an appeal on your behalf, and even then they will give you free advice to do it yourself, as I did. My OH was refused twice, but I still got it on appeal.
But, hopefully no appeal will be needed. Just talk to them - they will help you with this. https://beaconchc.co.uk/
Do not be fobbed off - I have watched this happen so many times and it makes me furious. People just believe what they are told and so often it is not accurate.