If professionals think you have FII then asking for further diagnoses/assessments just supports their view.
If you don't ask for further assessments then obviously the kids don't have that diagnosis and you are making it up.
If a CONSULTANT Dr at the hospital picks up a problem and refers your child for assessment, you can still get the blame for taking a child for unnecessary and intrusive appointments.
If a CONSULTANT Dr prescribes medication for your child you can get into trouble for giving you child unprescribed medication because it wasn't prescribed by the GP .
If you have more than one child with autism you can be accused of FFI.
If you have the bad luck to have a kid with hypermobility syndrome disorder , which peer reviewed academic research by global experts shows comes with the higher possibilities of asthma, autism, allergies, stomach, bowel and bladder problems, mast cell activation, POTS, arthritis, psoriasis, headaches and other conditions you are at risk of being described as having FFI as some of these are red flag conditions.
Met various different people with these experiences at autism training and support sessions.
If you have neurodiverse mum, without a diagnosis yet you could be in big trouble as you present similar to parents with FFI.
Social workers are human, overworked, and rely on training about FFI that doesn't understand the link between HSD and other conditions and that doesn't understand how medical letters are written. Medicine and education speak a different language. Some of them are going to make mistakes. Some of them are going to be biased. Some are going to have their own political leanings and prejudices. No service is going to be mistake free.
With individual cases on the internet it's not possible to tell how close to the truth they are. Some of them will be in denial about their failings while some of them will have been failed by SC.